2026-08-04 07:24:01 INFO ::casa Using user configuration file /home/casatest/.casa/config.py 2026-08-04 07:24:01 INFO ::casa loaded config file : /wheeldirectory/casa-6.7.7-2-py3.12.el9/lib/py/lib/python3.12/site-packages/casaconfig/config.py 2026-08-04 07:24:01 INFO ::casa loaded config file : /home/casatest/.casa/config.py 2026-08-04 07:24:01 INFO ::casa 2026-08-04 07:24:01 INFO ::casa config values 2026-08-04 07:24:01 INFO ::casa agg = False 2026-08-04 07:24:01 INFO ::casa cachedir = '/home/casatest/.casa' 2026-08-04 07:24:01 INFO ::casa casaconfig_verbose = 1 2026-08-04 07:24:01 INFO ::casa colors = 'Neutral' 2026-08-04 07:24:01 INFO ::casa data_auto_update = False 2026-08-04 07:24:01 INFO ::casa data_update_interval = 1 2026-08-04 07:24:01 INFO ::casa datapath = ['/opt/casa/data/master', '/opt/casa/data/casatestdata'] 2026-08-04 07:24:01 INFO ::casa iplog = False 2026-08-04 07:24:01 INFO ::casa iplogfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/ipython-20260804-072355.log' 2026-08-04 07:24:01 INFO ::casa log2term = True 2026-08-04 07:24:01 INFO ::casa logfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/casa-20260804-072355.log' 2026-08-04 07:24:01 INFO ::casa measures_auto_update = False 2026-08-04 07:24:01 INFO ::casa measures_site = ['https://www.astron.nl/iers/', 'https://go.nrao.edu/iers/'] 2026-08-04 07:24:01 INFO ::casa measures_site_interval = 2 2026-08-04 07:24:01 INFO ::casa measures_update_interval = 1 2026-08-04 07:24:01 INFO ::casa measurespath = '/opt/casa/data/master' 2026-08-04 07:24:01 INFO ::casa nogui = False 2026-08-04 07:24:01 INFO ::casa nologfile = False 2026-08-04 07:24:01 INFO ::casa nologger = True 2026-08-04 07:24:01 INFO ::casa pipeline = False 2026-08-04 07:24:01 INFO ::casa skipnetworkcheck = False 2026-08-04 07:24:01 INFO ::casa startupfile = '/home/casatest/.casa/startup.py' 2026-08-04 07:24:01 INFO ::casa user_site = False 2026-08-04 07:24:01 INFO ::casa 2026-08-04 07:24:01 INFO ::casa casarundata version is unknown, this is probably a legacy version not installed by casaconfig 2026-08-04 07:24:01 INFO ::casa measures version is unknown, this is probably a legacy version not installed by casaconfig 2026-08-04 07:24:01 INFO ::casa 2026-08-04 07:24:01 INFO ::casa Checking Measures tables in data repository sub-directory /opt/casa/data/master/geodetic 2026-08-04 07:24:01 INFO ::casa IERSeop2000 (version date, last date in table (UTC)): 2026/07/02/15:15, 2026/06/02/00:00:00 2026-08-04 07:24:01 INFO ::casa IERSeop97 (version date, last date in table (UTC)): 2026/07/02/15:15, 2026/06/02/00:00:00 2026-08-04 07:24:01 INFO ::casa IERSpredict (version date, last date in table (UTC)): 2026/07/29/15:15, 2026/10/27/00:00:00 2026-08-04 07:24:01 INFO ::casa TAI_UTC (version date, last date in table (UTC)): 2026/07/01/15:15, 2017/01/01/00:00:00 Running tests... ---------------------------------------------------------------------- Using user configuration file /home/casatest/.casa/config.py No event loop hook running. Using matplotlib backend: agg CASA 6.7.7.2 -- Common Astronomy Software Applications [6.7.7.2] 2026-08-04 07:24:03 INFO phaseshift::::casa ########################################## 2026-08-04 07:24:03 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:24:03 INFO phaseshift::::casa phaseshift( vis='/opt/casa/data/casatestdata/unittest/phaseshift/split11.ms', outputvis='phaseshift11.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'0': 'ICRS 1h27m38.337s +5d25m38.886s'} ) 2026-08-04 07:24:03 INFO MSTransformManager::parseMsSpecParams Input file name is /opt/casa/data/casatestdata/unittest/phaseshift/split11.ms 2026-08-04 07:24:03 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:24:03 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshift11.ms 2026-08-04 07:24:03 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:24:03 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:24:03 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:24:03 INFO MSTransformManager::open Select data 2026-08-04 07:24:03 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:24:08 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-08-04 07:24:08 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 1h27m38.337s +5d25m38.886s' successfully parsed for field 0 2026-08-04 07:24:08 INFO phaseshift::::casa Shift phase center 2026-08-04 07:24:08 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:24:08 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:24:02.750713 End time: 2026-08-04 07:24:08.435435 2026-08-04 07:24:08 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:24:08 INFO phaseshift::::casa ########################################## .2026-08-04 07:24:09 INFO phaseshift::::casa ########################################## 2026-08-04 07:24:09 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:24:09 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'0': 'GALACTIC 19h53m50 40d06m00', '2': 'GALACTIC 22h01m02 40d04m03'} ) 2026-08-04 07:24:09 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-08-04 07:24:09 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:24:09 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-08-04 07:24:09 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:24:09 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:24:09 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:24:09 INFO MSTransformManager::open Select data 2026-08-04 07:24:09 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:24:12 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-08-04 07:24:12 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 19h53m50 40d06m00' successfully parsed for field 0 2026-08-04 07:24:12 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 22h01m02 40d04m03' successfully parsed for field 2 2026-08-04 07:24:12 INFO phaseshift::::casa Shift phase center 2026-08-04 07:24:13 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:24:13 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:24:08.561563 End time: 2026-08-04 07:24:13.224826 2026-08-04 07:24:13 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:24:13 INFO phaseshift::::casa ########################################## .2026-08-04 07:24:13 INFO phaseshift::::casa ########################################## 2026-08-04 07:24:13 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:24:13 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'0': 'J2000 19h53m50 40d06m00', '3': 'J2000 19h53m50 40d06m00'} ) 2026-08-04 07:24:13 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-08-04 07:24:13 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:24:13 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-08-04 07:24:13 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:24:13 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:24:13 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:24:13 INFO MSTransformManager::open Select data 2026-08-04 07:24:13 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:24:17 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-08-04 07:24:17 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 0 2026-08-04 07:24:18 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: Wrong field ID given: 3. This MeasurementSet has field IDs between 0 and 2 2026-08-04 07:24:18 INFO phaseshift::::casa Traceback (most recent call last): 2026-08-04 07:24:18 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-2-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-08-04 07:24:18 INFO phaseshift::::casa+ task_result = _phaseshift_t( _pc.document['vis'],_pc.document['outputvis'],_pc.document['keepmms'],_pc.document['field'],_pc.document['spw'],_pc.document['scan'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['datacolumn'],_pc.document['phasecenter'] ) 2026-08-04 07:24:18 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-08-04 07:24:18 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-2-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-08-04 07:24:18 INFO phaseshift::::casa+ mtlocal.open() 2026-08-04 07:24:18 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-2-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-08-04 07:24:18 INFO phaseshift::::casa+ return self._swigobj.open() 2026-08-04 07:24:18 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-08-04 07:24:18 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-2-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-08-04 07:24:18 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-08-04 07:24:18 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-08-04 07:24:18 INFO phaseshift::::casa+ RuntimeError: Wrong field ID given: 3. This MeasurementSet has field IDs between 0 and 2 2026-08-04 07:24:18 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:24:13.421031 End time: 2026-08-04 07:24:17.743439 2026-08-04 07:24:18 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:24:18 INFO phaseshift::::casa ########################################## .2026-08-04 07:24:18 INFO phaseshift::::casa ########################################## 2026-08-04 07:24:18 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:24:18 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'0': 'J2000 19h53m50 40d06m00'} ) 2026-08-04 07:24:18 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-08-04 07:24:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:24:18 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-08-04 07:24:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:24:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:24:18 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:24:18 INFO MSTransformManager::open Select data 2026-08-04 07:24:18 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:24:20 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-08-04 07:24:20 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 0 2026-08-04 07:24:20 INFO phaseshift::::casa Shift phase center 2026-08-04 07:24:21 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:24:21 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:24:17.856376 End time: 2026-08-04 07:24:21.117132 2026-08-04 07:24:21 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:24:21 INFO phaseshift::::casa ########################################## .2026-08-04 07:24:21 INFO phaseshift::::casa ########################################## 2026-08-04 07:24:21 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:24:21 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='0,2', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'1': 'J2000 19h53m50 40d06m00', '2': 'J2000 22h01m02 40d04m03'} ) 2026-08-04 07:24:21 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-08-04 07:24:21 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:24:21 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-08-04 07:24:21 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:24:21 INFO MSTransformManager::parseDataSelParams field selection is 0,2 2026-08-04 07:24:21 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:24:21 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:24:21 INFO MSTransformManager::open Select data 2026-08-04 07:24:21 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:24:21 INFO MSTransformDataHandler::makeSelection 11536 out of 15344 rows are going to be considered due to the selection criteria. 2026-08-04 07:24:23 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-08-04 07:24:23 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 1 2026-08-04 07:24:23 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 22h01m02 40d04m03' successfully parsed for field 2 2026-08-04 07:24:23 INFO phaseshift::::casa Shift phase center 2026-08-04 07:24:24 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:24:24 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:24:21.304994 End time: 2026-08-04 07:24:24.416402 2026-08-04 07:24:24 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:24:24 INFO phaseshift::::casa ########################################## .2026-08-04 07:24:25 INFO phaseshift::::casa ########################################## 2026-08-04 07:24:25 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:24:25 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='0,2', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter={'0': 'ICRS 19h53m50 40d06m00', '2': 'ICRS 22h01m02 40d04m03'} ) 2026-08-04 07:24:25 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-08-04 07:24:25 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:24:25 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-08-04 07:24:25 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:24:25 INFO MSTransformManager::parseDataSelParams field selection is 0,2 2026-08-04 07:24:25 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:24:25 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:24:25 INFO MSTransformManager::open Select data 2026-08-04 07:24:25 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:24:25 INFO MSTransformDataHandler::makeSelection 11536 out of 15344 rows are going to be considered due to the selection criteria. 2026-08-04 07:24:31 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-08-04 07:24:31 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m50 40d06m00' successfully parsed for field 0 2026-08-04 07:24:31 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 22h01m02 40d04m03' successfully parsed for field 2 2026-08-04 07:24:31 INFO phaseshift::::casa Shift phase center 2026-08-04 07:24:31 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:24:32 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:24:24.560335 End time: 2026-08-04 07:24:31.509240 2026-08-04 07:24:32 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:24:32 INFO phaseshift::::casa ########################################## .2026-08-04 07:24:32 INFO phaseshift::::casa ########################################## 2026-08-04 07:24:32 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:24:32 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='test_vis_multi_field_phasecenter_dict.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-08-04 07:24:32 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-08-04 07:24:32 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:24:32 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-08-04 07:24:32 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:24:32 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:24:32 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:24:32 INFO MSTransformManager::open Select data 2026-08-04 07:24:32 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:24:34 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:24:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-08-04 07:24:34 INFO phaseshift::::casa Shift phase center 2026-08-04 07:24:35 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:24:35 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:24:31.623236 End time: 2026-08-04 07:24:34.976822 2026-08-04 07:24:35 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:24:35 INFO phaseshift::::casa ########################################## ..2026-08-04 07:24:37 INFO MeasIERS::fillMeas(MeasIERS::Files, Double) Requested JD 0 is outside the range of the IERS (Earth axis data) table. 2026-08-04 07:24:37 INFO MeasIERS::fillMeas(MeasIERS::Files, Double) + Calculations will proceed with less precision ..2026-08-04 07:24:37 SEVERE Error in QuantumHolder::fromString with input string "xxh53m50": Illegal input units or format 2026-08-04 07:24:37 SEVERE + in converting quantity from string 2026-08-04 07:24:37 SEVERE Exception Reported: Empty QuantumHolder argument for asQuantumDouble 2026-08-04 07:24:37 SEVERE Exception Reports: Empty QuantumHolder argument for asQuantumDouble 2026-08-04 07:24:37 SEVERE phaseshift::::casa *** Error measures.direction() failed for phasecenter string: BOGUS xxh53m50 40d06m00 when interpreting parameter 'phasecenter': ...2026-08-04 07:24:42 INFO phaseshift::::casa ########################################## 2026-08-04 07:24:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:24:42 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='1', observation='', datacolumn='all', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-08-04 07:24:42 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-08-04 07:24:42 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:24:42 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-08-04 07:24:42 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:24:42 INFO MSTransformManager::parseDataSelParams array selection is 1 2026-08-04 07:24:42 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:24:42 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:24:42 INFO MSTransformManager::open Select data 2026-08-04 07:24:42 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:24:42 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: MSSelectionNullSelection : The selected table has zero rows. 2026-08-04 07:24:42 INFO phaseshift::::casa Traceback (most recent call last): 2026-08-04 07:24:42 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-2-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-08-04 07:24:42 INFO phaseshift::::casa+ task_result = _phaseshift_t( _pc.document['vis'],_pc.document['outputvis'],_pc.document['keepmms'],_pc.document['field'],_pc.document['spw'],_pc.document['scan'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['datacolumn'],_pc.document['phasecenter'] ) 2026-08-04 07:24:42 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-08-04 07:24:42 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-2-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-08-04 07:24:42 INFO phaseshift::::casa+ mtlocal.open() 2026-08-04 07:24:42 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-2-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-08-04 07:24:42 INFO phaseshift::::casa+ return self._swigobj.open() 2026-08-04 07:24:42 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-08-04 07:24:42 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-2-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-08-04 07:24:42 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-08-04 07:24:42 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-08-04 07:24:42 INFO phaseshift::::casa+ RuntimeError: MSSelectionNullSelection : The selected table has zero rows. 2026-08-04 07:24:42 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:24:41.539987 End time: 2026-08-04 07:24:41.596642 2026-08-04 07:24:42 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:24:42 INFO phaseshift::::casa ########################################## 2026-08-04 07:24:42 INFO phaseshift::::casa ########################################## 2026-08-04 07:24:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:24:42 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='0', observation='', datacolumn='all', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-08-04 07:24:42 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-08-04 07:24:42 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:24:42 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-08-04 07:24:42 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:24:42 INFO MSTransformManager::parseDataSelParams array selection is 0 2026-08-04 07:24:42 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:24:42 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:24:42 INFO MSTransformManager::open Select data 2026-08-04 07:24:42 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:24:44 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-08-04 07:24:44 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-08-04 07:24:47 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:24:47 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-08-04 07:24:47 INFO phaseshift::::casa Shift phase center 2026-08-04 07:24:47 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:24:48 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:24:41.597879 End time: 2026-08-04 07:24:47.505812 2026-08-04 07:24:48 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:24:48 INFO phaseshift::::casa ########################################## .2026-08-04 07:24:49 INFO phaseshift::::casa ########################################## 2026-08-04 07:24:49 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:24:49 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='MODEL', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-08-04 07:24:49 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-08-04 07:24:49 INFO MSTransformManager::parseMsSpecParams Data column is MODEL 2026-08-04 07:24:49 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-08-04 07:24:49 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:24:49 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:24:49 WARN MSTransformManager::checkDataColumnsToFill MODEL_DATA column requested but not available in input MS 2026-08-04 07:24:49 INFO MSTransformManager::open Select data 2026-08-04 07:24:49 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:24:49 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: Desired column (MODEL_DATA) not found in the input MS (/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/nep_copy.ms). 2026-08-04 07:24:49 INFO phaseshift::::casa Traceback (most recent call last): 2026-08-04 07:24:49 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-2-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-08-04 07:24:49 INFO phaseshift::::casa+ task_result = _phaseshift_t( _pc.document['vis'],_pc.document['outputvis'],_pc.document['keepmms'],_pc.document['field'],_pc.document['spw'],_pc.document['scan'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['datacolumn'],_pc.document['phasecenter'] ) 2026-08-04 07:24:49 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-08-04 07:24:49 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-2-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-08-04 07:24:49 INFO phaseshift::::casa+ mtlocal.open() 2026-08-04 07:24:49 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-2-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-08-04 07:24:49 INFO phaseshift::::casa+ return self._swigobj.open() 2026-08-04 07:24:49 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-08-04 07:24:49 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-2-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-08-04 07:24:49 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-08-04 07:24:49 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-08-04 07:24:49 INFO phaseshift::::casa+ RuntimeError: Desired column (MODEL_DATA) not found in the input MS (/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/nep_copy.ms). 2026-08-04 07:24:49 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:24:48.591004 End time: 2026-08-04 07:24:48.621834 2026-08-04 07:24:49 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:24:49 INFO phaseshift::::casa ########################################## 2026-08-04 07:24:49 INFO phaseshift::::casa ########################################## 2026-08-04 07:24:49 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:24:49 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='DATA', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-08-04 07:24:49 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-08-04 07:24:49 INFO MSTransformManager::parseMsSpecParams Data column is DATA 2026-08-04 07:24:49 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-08-04 07:24:49 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:24:49 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:24:49 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:24:49 INFO MSTransformManager::open Select data 2026-08-04 07:24:49 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:24:51 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-08-04 07:24:51 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-08-04 07:24:53 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:24:53 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-08-04 07:24:53 INFO phaseshift::::casa Shift phase center 2026-08-04 07:24:54 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:24:54 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:24:48.622782 End time: 2026-08-04 07:24:53.832367 2026-08-04 07:24:54 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:24:54 INFO phaseshift::::casa ########################################## .2026-08-04 07:24:55 INFO phaseshift::::casa ########################################## 2026-08-04 07:24:55 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:24:55 INFO phaseshift::::casa phaseshift( vis='Itziar_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='2', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 00h00m01 -29d55m40' ) 2026-08-04 07:24:55 INFO MSTransformManager::parseMsSpecParams Input file name is Itziar_copy.ms 2026-08-04 07:24:55 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:24:55 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-08-04 07:24:55 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:24:55 INFO MSTransformManager::parseDataSelParams field selection is 2 2026-08-04 07:24:55 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:24:55 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:24:55 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:24:55 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:24:55 INFO MSTransformManager::open Select data 2026-08-04 07:24:55 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:24:55 INFO MSTransformDataHandler::makeSelection 6125 out of 245000 rows are going to be considered due to the selection criteria. 2026-08-04 07:24:58 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:24:58 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 00h00m01 -29d55m40' successfully parsed 2026-08-04 07:24:58 INFO phaseshift::::casa Shift phase center 2026-08-04 07:24:58 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:24:58 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:24:55.081950 End time: 2026-08-04 07:24:58.265621 2026-08-04 07:24:58 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:24:58 INFO phaseshift::::casa ########################################## .2026-08-04 07:24:59 INFO phaseshift::::casa ########################################## 2026-08-04 07:24:59 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:24:59 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='*FLUX*', array='', observation='', datacolumn='all', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-08-04 07:24:59 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-08-04 07:24:59 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:24:59 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-08-04 07:24:59 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:24:59 INFO MSTransformManager::parseDataSelParams scan intent selection is *FLUX* 2026-08-04 07:24:59 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:24:59 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:24:59 INFO MSTransformManager::open Select data 2026-08-04 07:24:59 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:24:59 INFO MSTransformDataHandler::makeSelection 570 out of 6270 rows are going to be considered due to the selection criteria. 2026-08-04 07:25:01 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-08-04 07:25:01 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-08-04 07:25:02 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:25:02 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-08-04 07:25:02 INFO phaseshift::::casa Shift phase center 2026-08-04 07:25:04 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:25:04 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:24:59.376760 End time: 2026-08-04 07:25:04.389889 2026-08-04 07:25:04 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:25:04 INFO phaseshift::::casa ########################################## .2026-08-04 07:25:06 INFO phaseshift::::casa ########################################## 2026-08-04 07:25:06 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:25:06 INFO phaseshift::::casa phaseshift( vis='mms_copy.mms', outputvis='phaseshiftout.ms', keepmms=False, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 05h30m48 13d31m48' ) 2026-08-04 07:25:06 INFO MSTransformManager::parseMsSpecParams Input file name is mms_copy.mms 2026-08-04 07:25:06 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:25:06 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-08-04 07:25:06 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:25:06 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:25:06 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:25:06 INFO MSTransformManager::open Select data 2026-08-04 07:25:06 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:25:09 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:25:09 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 05h30m48 13d31m48' successfully parsed 2026-08-04 07:25:09 INFO phaseshift::::casa Shift phase center 2026-08-04 07:25:10 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:25:10 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:25:05.579636 End time: 2026-08-04 07:25:09.606474 2026-08-04 07:25:10 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:25:10 INFO phaseshift::::casa ########################################## .2026-08-04 07:25:11 INFO phaseshift::::casa ########################################## 2026-08-04 07:25:11 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:25:11 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='1', datacolumn='all', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-08-04 07:25:11 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-08-04 07:25:11 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:25:11 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-08-04 07:25:11 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:25:11 INFO MSTransformManager::parseDataSelParams observation selection is 1 2026-08-04 07:25:11 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:25:11 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:25:11 INFO MSTransformManager::open Select data 2026-08-04 07:25:11 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:25:11 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: MSSelectionNullSelection : The selected table has zero rows. 2026-08-04 07:25:11 INFO phaseshift::::casa Traceback (most recent call last): 2026-08-04 07:25:11 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-2-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-08-04 07:25:11 INFO phaseshift::::casa+ task_result = _phaseshift_t( _pc.document['vis'],_pc.document['outputvis'],_pc.document['keepmms'],_pc.document['field'],_pc.document['spw'],_pc.document['scan'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['datacolumn'],_pc.document['phasecenter'] ) 2026-08-04 07:25:11 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-08-04 07:25:11 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-2-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-08-04 07:25:11 INFO phaseshift::::casa+ mtlocal.open() 2026-08-04 07:25:11 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-2-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-08-04 07:25:11 INFO phaseshift::::casa+ return self._swigobj.open() 2026-08-04 07:25:11 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-08-04 07:25:11 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-2-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-08-04 07:25:11 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-08-04 07:25:11 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-08-04 07:25:11 INFO phaseshift::::casa+ RuntimeError: MSSelectionNullSelection : The selected table has zero rows. 2026-08-04 07:25:11 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:25:10.607454 End time: 2026-08-04 07:25:10.646090 2026-08-04 07:25:11 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:25:11 INFO phaseshift::::casa ########################################## 2026-08-04 07:25:11 INFO phaseshift::::casa ########################################## 2026-08-04 07:25:11 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:25:11 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='0', datacolumn='all', phasecenter='ICRS 00h06m14 -06d23m35' ) 2026-08-04 07:25:11 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-08-04 07:25:11 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:25:11 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-08-04 07:25:11 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:25:11 INFO MSTransformManager::parseDataSelParams observation selection is 0 2026-08-04 07:25:11 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:25:11 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:25:11 INFO MSTransformManager::open Select data 2026-08-04 07:25:11 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:25:13 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-08-04 07:25:13 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-08-04 07:25:15 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:25:15 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-08-04 07:25:15 INFO phaseshift::::casa Shift phase center 2026-08-04 07:25:16 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:25:16 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:25:10.647147 End time: 2026-08-04 07:25:15.545105 2026-08-04 07:25:16 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:25:16 INFO phaseshift::::casa ########################################## .2026-08-04 07:25:17 INFO phaseshift::::casa ########################################## 2026-08-04 07:25:17 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:25:17 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-08-04 07:25:17 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-08-04 07:25:17 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:25:17 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-08-04 07:25:17 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:25:17 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:25:17 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:25:17 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:25:17 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:25:17 INFO MSTransformManager::open Select data 2026-08-04 07:25:17 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:25:22 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:25:22 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-08-04 07:25:22 INFO phaseshift::::casa Shift phase center 2026-08-04 07:25:24 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:25:24 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:25:16.693650 End time: 2026-08-04 07:25:24.094765 2026-08-04 07:25:24 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:25:24 INFO phaseshift::::casa ########################################## .2026-08-04 07:25:25 INFO phaseshift::::casa ########################################## 2026-08-04 07:25:25 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:25:25 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='' ) 2026-08-04 07:25:25 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: phasecenter parameter must be specified 2026-08-04 07:25:25 INFO phaseshift::::casa Traceback (most recent call last): 2026-08-04 07:25:25 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-2-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-08-04 07:25:25 INFO phaseshift::::casa+ task_result = _phaseshift_t( _pc.document['vis'],_pc.document['outputvis'],_pc.document['keepmms'],_pc.document['field'],_pc.document['spw'],_pc.document['scan'],_pc.document['intent'],_pc.document['array'],_pc.document['observation'],_pc.document['datacolumn'],_pc.document['phasecenter'] ) 2026-08-04 07:25:25 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-08-04 07:25:25 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.7-2-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 31, in phaseshift 2026-08-04 07:25:25 INFO phaseshift::::casa+ raise ValueError("phasecenter parameter must be specified") 2026-08-04 07:25:25 INFO phaseshift::::casa+ ValueError: phasecenter parameter must be specified 2026-08-04 07:25:25 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:25:25.183646 End time: 2026-08-04 07:25:25.184723 2026-08-04 07:25:25 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:25:25 INFO phaseshift::::casa ########################################## 2026-08-04 07:25:25 INFO phaseshift::::casa ########################################## 2026-08-04 07:25:25 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:25:25 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 00h06m14 -08d23m35' ) 2026-08-04 07:25:25 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-08-04 07:25:25 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:25:25 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-08-04 07:25:25 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:25:25 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:25:25 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:25:25 INFO MSTransformManager::open Select data 2026-08-04 07:25:25 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:25:27 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-08-04 07:25:27 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-08-04 07:25:30 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:25:30 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -08d23m35' successfully parsed 2026-08-04 07:25:30 INFO phaseshift::::casa Shift phase center 2026-08-04 07:25:30 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:25:30 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:25:25.185626 End time: 2026-08-04 07:25:30.163765 2026-08-04 07:25:30 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:25:30 INFO phaseshift::::casa ########################################## .2026-08-04 07:25:31 INFO phaseshift::::casa ########################################## 2026-08-04 07:25:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:25:31 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='00h06m14 -08d23m35' ) 2026-08-04 07:25:31 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-08-04 07:25:31 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:25:31 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-08-04 07:25:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:25:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:25:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:25:31 INFO MSTransformManager::open Select data 2026-08-04 07:25:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:25:33 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-08-04 07:25:33 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-08-04 07:25:35 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:25:35 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center '00h06m14 -08d23m35' successfully parsed 2026-08-04 07:25:35 INFO phaseshift::::casa Shift phase center 2026-08-04 07:25:37 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:25:37 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:25:31.279820 End time: 2026-08-04 07:25:37.130385 2026-08-04 07:25:37 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:25:37 INFO phaseshift::::casa ########################################## .2026-08-04 07:25:38 INFO phaseshift::::casa ########################################## 2026-08-04 07:25:38 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:25:38 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='post_phaseshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-08-04 07:25:38 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-08-04 07:25:38 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:25:38 INFO MSTransformManager::parseMsSpecParams Output file name is post_phaseshift.ms 2026-08-04 07:25:38 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:25:38 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:25:38 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:25:38 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:25:38 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:25:38 INFO MSTransformManager::open Select data 2026-08-04 07:25:38 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:25:41 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:25:41 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-08-04 07:25:41 INFO phaseshift::::casa Shift phase center 2026-08-04 07:25:42 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:25:42 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:25:38.303881 End time: 2026-08-04 07:25:42.472269 2026-08-04 07:25:42 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:25:42 INFO phaseshift::::casa ########################################## 2026-08-04 07:25:43 INFO tclean::::casa ########################################## 2026-08-04 07:25:43 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:25:43 INFO tclean::::casa tclean( vis='datacopy.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='corrected', imagename='im2_pre', imsize=2048, cell='5arcsec', phasecenter='J2000 19h59m28.449 40d44m01.199', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=0, gain=0.1, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:25:43 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:25:43 INFO SynthesisImagerVi2::selectData MS : datacopy.ms | [Opened in readonly mode] 2026-08-04 07:25:43 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-08-04 07:25:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_pre] : 2026-08-04 07:25:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_pre] : 2026-08-04 07:25:43 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:25:43 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-08-04 07:25:43 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_pre] with ftmachine : wprojectft 2026-08-04 07:25:43 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 47.6 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:25:43 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:25:43 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_pre] : hogbom 2026-08-04 07:25:43 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:25:43 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-08-04 07:25:43 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-08-04 07:25:43 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-08-04 07:25:43 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-08-04 07:25:59 INFO WPConvFunc::findConvFunction Convolution support = [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 28, 28, 28, 28, 28, 28, 28, 28, 28, 32, 32, 32, 32, 32, 32, 32, 32, 36, 36, 36, 36, 36, 36, 36, 40, 40, 40, 40, 40, 40, 44, 44, 44, 44, 44, 44, 44, 48, 48, 48, 48, 48, 52, 52, 52, 52, 52, 52, 56, 56, 56, 56, 56, 60, 60, 60, 60, 60, 64, 64, 64, 64, 64, 68, 68, 68, 68, 68, 72, 72, 72, 72, 76, 76, 76, 76, 80, 80, 80] pixels in Fourier plane 2026-08-04 07:25:59 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 64265 MB 2026-08-04 07:26:01 INFO SIImageStore::calcSensitivity [im2_pre] Theoretical sensitivity (Jy/bm):0.00204403 2026-08-04 07:26:02 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.121498 2026-08-04 07:26:02 INFO SIImageStore::printBeamSet Beam : 54.8469 arcsec, 48.7749 arcsec, 82.835 deg 2026-08-04 07:26:02 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:26:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:26:05 INFO task_tclean::SDAlgorithmBase::restore [im2_pre] : Restoring model image. 2026-08-04 07:26:05 WARN task_tclean::SIImageStore::restore (file /source/casa6/casatools/src/code/synthesis/ImagerObjects/SIImageStore.cc, line 2353) Restoring with an empty model image. Only residuals will be processed to form the output restored image. 2026-08-04 07:26:06 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.8469 arcsec, 48.7749 arcsec, 82.835 deg 2026-08-04 07:26:06 INFO tclean::::casa Searching for images with prefix 'im2_pre'... Found these, writing history into them: ['im2_pre.sumwt', 'im2_pre.model', 'im2_pre.image', 'im2_pre.pb', 'im2_pre.psf', 'im2_pre.residual'] 2026-08-04 07:26:06 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:25:42.608454 End time: 2026-08-04 07:26:06.375695 2026-08-04 07:26:06 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:26:06 INFO tclean::::casa ########################################## 2026-08-04 07:26:06 INFO tclean::::casa ########################################## 2026-08-04 07:26:06 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:26:06 INFO tclean::::casa tclean( vis='post_phaseshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='corrected', imagename='im2_post_phaseshift', imsize=2048, cell='5arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=0, gain=0.1, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:26:06 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:26:06 INFO SynthesisImagerVi2::selectData MS : post_phaseshift.ms | [Opened in readonly mode] 2026-08-04 07:26:06 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-08-04 07:26:07 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift] : 2026-08-04 07:26:07 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift] : 2026-08-04 07:26:07 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:26:07 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-08-04 07:26:07 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_post_phaseshift] with ftmachine : wprojectft 2026-08-04 07:26:07 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 47.59 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:26:07 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:26:07 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_post_phaseshift] : hogbom 2026-08-04 07:26:07 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:26:07 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-08-04 07:26:07 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-08-04 07:26:07 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-08-04 07:26:07 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-08-04 07:26:23 INFO WPConvFunc::findConvFunction Convolution support = [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 28, 28, 28, 28, 28, 28, 28, 28, 28, 32, 32, 32, 32, 32, 32, 32, 32, 36, 36, 36, 36, 36, 36, 36, 40, 40, 40, 40, 40, 40, 44, 44, 44, 44, 44, 44, 44, 48, 48, 48, 48, 48, 52, 52, 52, 52, 52, 52, 56, 56, 56, 56, 56, 60, 60, 60, 60, 60, 64, 64, 64, 64, 64, 68, 68, 68, 68, 68, 72, 72, 72, 72, 76, 76, 76, 76, 80, 80, 80] pixels in Fourier plane 2026-08-04 07:26:23 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 64265 MB 0%....10....20....30....40....50....60....70....80....90....100% 2026-08-04 07:26:37 INFO SIImageStore::calcSensitivity [im2_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00204403 2026-08-04 07:26:37 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.111911 2026-08-04 07:26:37 INFO SIImageStore::printBeamSet Beam : 54.3737 arcsec, 48.741 arcsec, 82.2249 deg 2026-08-04 07:26:37 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:26:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:26:41 INFO task_tclean::SDAlgorithmBase::restore [im2_post_phaseshift] : Restoring model image. 2026-08-04 07:26:41 WARN task_tclean::SIImageStore::restore (file /source/casa6/casatools/src/code/synthesis/ImagerObjects/SIImageStore.cc, line 2353) Restoring with an empty model image. Only residuals will be processed to form the output restored image. 2026-08-04 07:26:41 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.3737 arcsec, 48.741 arcsec, 82.2249 deg 2026-08-04 07:26:42 INFO tclean::::casa Searching for images with prefix 'im2_post_phaseshift'... Found these, writing history into them: ['im2_post_phaseshift.residual', 'im2_post_phaseshift.sumwt', 'im2_post_phaseshift.pb', 'im2_post_phaseshift.image', 'im2_post_phaseshift.model', 'im2_post_phaseshift.psf'] 2026-08-04 07:26:42 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:26:06.413705 End time: 2026-08-04 07:26:42.305412 2026-08-04 07:26:42 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:26:42 INFO tclean::::casa ########################################## 2026-08-04 07:26:42 INFO tclean::::casa ########################################## 2026-08-04 07:26:42 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:26:42 INFO tclean::::casa tclean( vis='post_phaseshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='corrected', imagename='im2_post_phaseshift_tclean_phasecenter', imsize=2048, cell='5arcsec', phasecenter='J2000 19h59m28.449 40d44m01.199', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=0, gain=0.1, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:26:42 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:26:42 INFO SynthesisImagerVi2::selectData MS : post_phaseshift.ms | [Opened in readonly mode] 2026-08-04 07:26:42 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-08-04 07:26:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift_tclean_phasecenter] : 2026-08-04 07:26:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift_tclean_phasecenter] : 2026-08-04 07:26:43 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:26:43 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-08-04 07:26:43 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_post_phaseshift_tclean_phasecenter] with ftmachine : wprojectft 2026-08-04 07:26:43 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 47.59 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:26:43 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:26:43 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_post_phaseshift_tclean_phasecenter] : hogbom 2026-08-04 07:26:43 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:26:45 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-08-04 07:26:45 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-08-04 07:26:45 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-08-04 07:26:45 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-08-04 07:27:01 INFO WPConvFunc::findConvFunction Convolution support = [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 28, 28, 28, 28, 28, 28, 28, 28, 28, 32, 32, 32, 32, 32, 32, 32, 32, 36, 36, 36, 36, 36, 36, 36, 40, 40, 40, 40, 40, 40, 44, 44, 44, 44, 44, 44, 44, 48, 48, 48, 48, 48, 52, 52, 52, 52, 52, 52, 56, 56, 56, 56, 56, 60, 60, 60, 60, 60, 64, 64, 64, 64, 64, 68, 68, 68, 68, 68, 72, 72, 72, 72, 76, 76, 76, 76, 80, 80, 80] pixels in Fourier plane 2026-08-04 07:27:01 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 64265 MB 2026-08-04 07:27:03 INFO SIImageStore::calcSensitivity [im2_post_phaseshift_tclean_phasecenter] Theoretical sensitivity (Jy/bm):0.00204403 2026-08-04 07:27:03 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.110841 2026-08-04 07:27:03 INFO SIImageStore::printBeamSet Beam : 54.8469 arcsec, 48.775 arcsec, 82.8349 deg 2026-08-04 07:27:03 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:27:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:27:07 INFO task_tclean::SDAlgorithmBase::restore [im2_post_phaseshift_tclean_phasecenter] : Restoring model image. 2026-08-04 07:27:07 WARN task_tclean::SIImageStore::restore (file /source/casa6/casatools/src/code/synthesis/ImagerObjects/SIImageStore.cc, line 2353) Restoring with an empty model image. Only residuals will be processed to form the output restored image. 2026-08-04 07:27:08 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.8469 arcsec, 48.775 arcsec, 82.8349 deg 2026-08-04 07:27:09 INFO tclean::::casa Searching for images with prefix 'im2_post_phaseshift_tclean_phasecenter'... Found these, writing history into them: ['im2_post_phaseshift_tclean_phasecenter.residual', 'im2_post_phaseshift_tclean_phasecenter.psf', 'im2_post_phaseshift_tclean_phasecenter.image', 'im2_post_phaseshift_tclean_phasecenter.model', 'im2_post_phaseshift_tclean_phasecenter.pb', 'im2_post_phaseshift_tclean_phasecenter.sumwt'] 2026-08-04 07:27:11 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:26:42.340152 End time: 2026-08-04 07:27:11.437532 2026-08-04 07:27:11 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:27:11 INFO tclean::::casa ########################################## Image value at source locations Original MS : {'unit': 'Jy/beam', 'value': 1.0387226343154907} and {'unit': 'Jy/beam', 'value': 5.590171813964844} Phase shifted MS : {'unit': 'Jy/beam', 'value': 1.038696050643921} and {'unit': 'Jy/beam', 'value': 5.589254856109619} .2026-08-04 07:27:13 INFO phaseshift::::casa ########################################## 2026-08-04 07:27:13 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:27:13 INFO phaseshift::::casa phaseshift( vis='ngc_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='1', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 23h11m54 61d10m54' ) 2026-08-04 07:27:13 INFO MSTransformManager::parseMsSpecParams Input file name is ngc_copy.ms 2026-08-04 07:27:13 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:27:13 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-08-04 07:27:13 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:27:13 INFO MSTransformManager::parseDataSelParams spw selection is 1 2026-08-04 07:27:13 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:27:13 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:27:13 INFO MSTransformManager::initDataSelectionParams Selected SPWs Ids are Axis Lengths: [1, 4] (NB: Matrix in Row/Column order) 2026-08-04 07:27:13 INFO MSTransformManager::initDataSelectionParams+ [1, 0, 4, 1] 2026-08-04 07:27:13 INFO MSTransformManager::open Select data 2026-08-04 07:27:13 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:27:13 INFO MSTransformDataHandler::makeSelection 13338 out of 26676 rows are going to be considered due to the selection criteria. 2026-08-04 07:27:15 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:27:15 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 23h11m54 61d10m54' successfully parsed 2026-08-04 07:27:15 INFO phaseshift::::casa Shift phase center 2026-08-04 07:27:16 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:27:16 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:27:12.756943 End time: 2026-08-04 07:27:16.418666 2026-08-04 07:27:16 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:27:16 INFO phaseshift::::casa ########################################## .2026-08-04 07:27:17 INFO phaseshift::::casa ########################################## 2026-08-04 07:27:17 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:27:17 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-08-04 07:27:17 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-08-04 07:27:17 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:27:17 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-08-04 07:27:17 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:27:17 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:27:17 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:27:17 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:27:17 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:27:17 INFO MSTransformManager::open Select data 2026-08-04 07:27:17 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:27:19 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:27:19 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-08-04 07:27:19 INFO phaseshift::::casa Shift phase center 2026-08-04 07:27:21 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:27:21 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:27:17.449751 End time: 2026-08-04 07:27:20.913122 2026-08-04 07:27:21 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:27:21 INFO phaseshift::::casa ########################################## .2026-08-04 07:27:21 INFO phaseshift::::casa ########################################## 2026-08-04 07:27:21 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:27:21 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='0', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.108888889deg' ) 2026-08-04 07:27:22 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:27:22 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:27:22 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:27:22 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:27:22 INFO MSTransformManager::parseDataSelParams field selection is 0 2026-08-04 07:27:22 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:27:22 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:27:22 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:27:22 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:27:22 INFO MSTransformManager::open Select data 2026-08-04 07:27:22 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:27:22 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-08-04 07:27:23 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:27:23 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-08-04 07:27:23 INFO phaseshift::::casa Shift phase center 2026-08-04 07:27:24 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:27:24 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:27:21.468273 End time: 2026-08-04 07:27:24.083702 2026-08-04 07:27:24 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:27:24 INFO phaseshift::::casa ########################################## 2026-08-04 07:27:24 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-08-04 07:27:24 INFO tclean::::casa ########################################## 2026-08-04 07:27:24 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:27:24 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:27:24 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:27:24 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:27:24 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-08-04 07:27:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:27:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:27:24 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:27:24 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99981e+08] at [0] with increment [9.99998e+07] 2026-08-04 07:27:24 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:27:24 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.59 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:27:24 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:27:24 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:27:25 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:27:25 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-08-04 07:27:25 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025293 2026-08-04 07:27:25 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-08-04 07:27:25 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:27:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:27:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:27:26 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:27:26 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:27:26 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:27:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6347251534461975, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:27:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.634725, CycleNiter=20, Gain=0.3 2026-08-04 07:27:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:27:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:27:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:27:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:27:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07467404007911682, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:27:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.074674, CycleNiter=14, Gain=0.3 2026-08-04 07:27:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-08-04 07:27:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:27:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:27:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-08-04 07:27:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00878525897860527, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:27:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00878526, CycleNiter=8, Gain=0.3 2026-08-04 07:27:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-08-04 07:27:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:27:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:27:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814184, over full image : 0.00814184 2026-08-04 07:27:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0010335649130865932, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:27:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00103356, CycleNiter=2, Gain=0.3 2026-08-04 07:27:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814184->0.00279265, Reached cycleniter. 2026-08-04 07:27:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:27:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:27:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279276, over full image : 0.00279276 2026-08-04 07:27:30 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:27:30 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:27:30 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:27:31 INFO SIImageStore::restore Beam for chan : 0 : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-08-04 07:27:31 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:27:32 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:27:24.330225 End time: 2026-08-04 07:27:31.620904 2026-08-04 07:27:32 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:27:32 INFO tclean::::casa ########################################## 2026-08-04 07:27:32 INFO imstat::::casa ########################################## 2026-08-04 07:27:32 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:27:32 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:27:32 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:27:32 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:27:32 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:27:32 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:27:32 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:27:32 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz to 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz) 2026-08-04 07:27:32 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:27:32 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:27:32 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:27:32 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:27:32 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz 2026-08-04 07:27:32 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz 2026-08-04 07:27:32 INFO imstat:::: Values --- 2026-08-04 07:27:32 INFO imstat:::: -- flux density [flux]: 4.99409 Jy 2026-08-04 07:27:32 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:27:32 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:27:32 INFO imstat:::: -- minimum value [min]: -0.00012283 Jy/beam 2026-08-04 07:27:32 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-08-04 07:27:32 INFO imstat:::: -- position of min value (pixel) [minpos]: [100, 55, 0, 0] 2026-08-04 07:27:32 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 9.99981e+08Hz 2026-08-04 07:27:32 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:09.479, +39.56.47.897, I, 9.99981e+08Hz 2026-08-04 07:27:32 INFO imstat:::: -- Sum of pixel values [sum]: 605.961 Jy/beam 2026-08-04 07:27:32 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1516.75 Jy/beam.Jy/beam 2026-08-04 07:27:32 INFO imstat:::: Statistics --- 2026-08-04 07:27:32 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00924623 Jy/beam 2026-08-04 07:27:32 INFO imstat:::: -- Variance of the pixel values : 0.0230586 Jy/beam 2026-08-04 07:27:32 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.15185 Jy/beam 2026-08-04 07:27:32 INFO imstat:::: -- Root mean square [rms]: 0.152131 Jy/beam 2026-08-04 07:27:32 INFO imstat:::: -- Median of the pixel values [median]: -2.09007e-05 Jy/beam 2026-08-04 07:27:32 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 3.00259e-05 Jy/beam 2026-08-04 07:27:32 INFO imstat:::: -- IQR [quartile]: 6.1616e-05 Jy/beam 2026-08-04 07:27:32 INFO imstat:::: -- First quartile [q1]: -4.79744e-05 Jy/beam 2026-08-04 07:27:32 INFO imstat:::: -- Third quartile [q3]: 1.36416e-05 Jy/beam 2026-08-04 07:27:32 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:27:32 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:27:32 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:27:32 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:27:32 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:27:32 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:27:32 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.059610e+02 9.246232e-03 1.521305e-01 1.518505e-01 -1.228298e-04 4.999997e+00 2026-08-04 07:27:32 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:27:31.644968 End time: 2026-08-04 07:27:31.690126 2026-08-04 07:27:32 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:27:32 INFO imstat::::casa ########################################## 2026-08-04 07:27:32 INFO phaseshift::::casa ########################################## 2026-08-04 07:27:32 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:27:32 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='fake', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.108888889deg' ) 2026-08-04 07:27:32 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:27:32 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:27:32 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:27:32 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:27:32 INFO MSTransformManager::parseDataSelParams field selection is fake 2026-08-04 07:27:32 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:27:32 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:27:32 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:27:32 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:27:32 INFO MSTransformManager::open Select data 2026-08-04 07:27:32 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:27:32 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-08-04 07:27:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:27:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-08-04 07:27:33 INFO phaseshift::::casa Shift phase center 2026-08-04 07:27:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:27:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:27:31.713966 End time: 2026-08-04 07:27:33.677615 2026-08-04 07:27:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:27:34 INFO phaseshift::::casa ########################################## 2026-08-04 07:27:34 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data.ms... 2026-08-04 07:27:34 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-08-04 07:27:34 INFO tclean::::casa ########################################## 2026-08-04 07:27:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:27:34 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:27:34 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:27:34 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:27:34 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-08-04 07:27:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:27:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:27:34 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:27:34 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99981e+08] at [0] with increment [9.99998e+07] 2026-08-04 07:27:34 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:27:34 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:27:34 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:27:34 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:27:34 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:27:35 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-08-04 07:27:35 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.017057 2026-08-04 07:27:35 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-08-04 07:27:35 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:27:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:27:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:27:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:27:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:27:36 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:27:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6347251534461975, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:27:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.634725, CycleNiter=20, Gain=0.3 2026-08-04 07:27:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:27:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:27:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:27:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:27:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07467404007911682, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:27:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.074674, CycleNiter=14, Gain=0.3 2026-08-04 07:27:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-08-04 07:27:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:27:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:27:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-08-04 07:27:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00878525897860527, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:27:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00878526, CycleNiter=8, Gain=0.3 2026-08-04 07:27:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-08-04 07:27:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:27:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:27:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814184, over full image : 0.00814184 2026-08-04 07:27:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0010335649130865932, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:27:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00103356, CycleNiter=2, Gain=0.3 2026-08-04 07:27:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814184->0.00279265, Reached cycleniter. 2026-08-04 07:27:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:27:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:27:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279276, over full image : 0.00279276 2026-08-04 07:27:41 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:27:41 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:27:41 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:27:42 INFO SIImageStore::restore Beam for chan : 0 : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-08-04 07:27:42 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:27:43 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:27:33.780262 End time: 2026-08-04 07:27:43.001308 2026-08-04 07:27:43 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:27:43 INFO tclean::::casa ########################################## 2026-08-04 07:27:43 INFO imstat::::casa ########################################## 2026-08-04 07:27:43 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:27:43 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:27:43 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:27:43 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:27:43 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:27:43 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:27:43 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:27:43 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz to 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz) 2026-08-04 07:27:43 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:27:43 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:27:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:27:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:27:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz 2026-08-04 07:27:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz 2026-08-04 07:27:43 INFO imstat:::: Values --- 2026-08-04 07:27:43 INFO imstat:::: -- flux density [flux]: 4.99409 Jy 2026-08-04 07:27:43 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:27:43 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:27:43 INFO imstat:::: -- minimum value [min]: -0.00012283 Jy/beam 2026-08-04 07:27:43 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-08-04 07:27:43 INFO imstat:::: -- position of min value (pixel) [minpos]: [100, 55, 0, 0] 2026-08-04 07:27:43 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 9.99981e+08Hz 2026-08-04 07:27:43 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:09.479, +39.56.47.897, I, 9.99981e+08Hz 2026-08-04 07:27:43 INFO imstat:::: -- Sum of pixel values [sum]: 605.961 Jy/beam 2026-08-04 07:27:43 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1516.75 Jy/beam.Jy/beam 2026-08-04 07:27:43 INFO imstat:::: Statistics --- 2026-08-04 07:27:43 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00924623 Jy/beam 2026-08-04 07:27:43 INFO imstat:::: -- Variance of the pixel values : 0.0230586 Jy/beam 2026-08-04 07:27:43 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.15185 Jy/beam 2026-08-04 07:27:43 INFO imstat:::: -- Root mean square [rms]: 0.152131 Jy/beam 2026-08-04 07:27:43 INFO imstat:::: -- Median of the pixel values [median]: -2.09007e-05 Jy/beam 2026-08-04 07:27:43 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 3.00259e-05 Jy/beam 2026-08-04 07:27:43 INFO imstat:::: -- IQR [quartile]: 6.1616e-05 Jy/beam 2026-08-04 07:27:43 INFO imstat:::: -- First quartile [q1]: -4.79744e-05 Jy/beam 2026-08-04 07:27:43 INFO imstat:::: -- Third quartile [q3]: 1.36416e-05 Jy/beam 2026-08-04 07:27:43 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:27:43 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:27:43 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:27:43 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:27:43 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:27:43 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:27:43 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.059610e+02 9.246232e-03 1.521305e-01 1.518505e-01 -1.228298e-04 4.999997e+00 2026-08-04 07:27:43 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:27:43.006030 End time: 2026-08-04 07:27:43.048379 2026-08-04 07:27:43 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:27:43 INFO imstat::::casa ########################################## 2026-08-04 07:27:43 INFO phaseshift::::casa ########################################## 2026-08-04 07:27:43 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:27:43 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.108888889deg' ) 2026-08-04 07:27:43 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:27:43 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:27:43 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:27:43 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:27:43 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:27:43 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:27:43 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:27:43 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:27:43 INFO MSTransformManager::open Select data 2026-08-04 07:27:43 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:27:45 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:27:45 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-08-04 07:27:45 INFO phaseshift::::casa Shift phase center 2026-08-04 07:27:45 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:27:45 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:27:43.070369 End time: 2026-08-04 07:27:45.482621 2026-08-04 07:27:45 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:27:45 INFO phaseshift::::casa ########################################## 2026-08-04 07:27:46 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-08-04 07:27:46 INFO tclean::::casa ########################################## 2026-08-04 07:27:46 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:27:46 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:27:46 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:27:46 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:27:46 INFO SynthesisImagerVi2::selectData NRows selected : 7020 2026-08-04 07:27:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:27:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:27:46 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:27:46 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:27:46 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:27:46 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:27:46 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:27:46 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:27:46 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:27:47 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00843949 2026-08-04 07:27:47 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020048 2026-08-04 07:27:47 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.9193 arcsec, 77.6082 arcsec, 88.5528 deg 2026-08-04 07:27:47 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:27:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:27:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:27:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:27:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:27:48 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:27:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6069034934043884, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:27:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.606903, CycleNiter=20, Gain=0.3 2026-08-04 07:27:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:27:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:27:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:27:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:27:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07140088081359863, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:27:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0714009, CycleNiter=14, Gain=0.3 2026-08-04 07:27:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-08-04 07:27:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:27:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:27:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-08-04 07:27:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00840018317103386, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:27:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00840018, CycleNiter=8, Gain=0.3 2026-08-04 07:27:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-08-04 07:27:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:27:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:27:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814189, over full image : 0.00814189 2026-08-04 07:27:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009882674785330892, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:27:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000988267, CycleNiter=2, Gain=0.3 2026-08-04 07:27:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814189->0.00279267, Reached cycleniter. 2026-08-04 07:27:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:27:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:27:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0027928, over full image : 0.0027928 2026-08-04 07:27:52 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:27:52 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:27:52 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:27:53 INFO SIImageStore::restore Beam for chan : 0 : 88.9193 arcsec, 77.6082 arcsec, 88.5528 deg 2026-08-04 07:27:53 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:27:55 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:27:45.671262 End time: 2026-08-04 07:27:54.937970 2026-08-04 07:27:55 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:27:55 INFO tclean::::casa ########################################## 2026-08-04 07:27:55 INFO imstat::::casa ########################################## 2026-08-04 07:27:55 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:27:55 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:27:55 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:27:55 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:27:55 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:27:55 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:27:55 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:27:55 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.888, +39.49.25.864, I, 999981604.64Hz to 19:52:21.069, +40.23.25.888, I, 999981604.64Hz) 2026-08-04 07:27:55 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:27:55 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:27:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:27:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:27:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 999981604.64Hz 2026-08-04 07:27:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 999981604.64Hz 2026-08-04 07:27:55 INFO imstat:::: Values --- 2026-08-04 07:27:55 INFO imstat:::: -- flux density [flux]: 4.99444 Jy 2026-08-04 07:27:55 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:27:55 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:27:55 INFO imstat:::: -- minimum value [min]: -9.70533e-05 Jy/beam 2026-08-04 07:27:55 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-08-04 07:27:55 INFO imstat:::: -- position of min value (pixel) [minpos]: [158, 70, 0, 0] 2026-08-04 07:27:55 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981604.64Hz 2026-08-04 07:27:55 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:29.120, +39.58.47.882, I, 999981604.64Hz 2026-08-04 07:27:55 INFO imstat:::: -- Sum of pixel values [sum]: 610.203 Jy/beam 2026-08-04 07:27:55 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1527.26 Jy/beam.Jy/beam 2026-08-04 07:27:55 INFO imstat:::: Statistics --- 2026-08-04 07:27:55 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00931096 Jy/beam 2026-08-04 07:27:55 INFO imstat:::: -- Variance of the pixel values : 0.0232178 Jy/beam 2026-08-04 07:27:55 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152374 Jy/beam 2026-08-04 07:27:55 INFO imstat:::: -- Root mean square [rms]: 0.152657 Jy/beam 2026-08-04 07:27:55 INFO imstat:::: -- Median of the pixel values [median]: -1.85752e-05 Jy/beam 2026-08-04 07:27:55 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.83975e-05 Jy/beam 2026-08-04 07:27:55 INFO imstat:::: -- IQR [quartile]: 3.74524e-05 Jy/beam 2026-08-04 07:27:55 INFO imstat:::: -- First quartile [q1]: -3.53147e-05 Jy/beam 2026-08-04 07:27:55 INFO imstat:::: -- Third quartile [q3]: 2.13765e-06 Jy/beam 2026-08-04 07:27:55 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:27:55 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:27:55 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:27:55 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:27:55 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:27:55 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:27:55 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.102032e+02 9.310961e-03 1.526569e-01 1.523738e-01 -9.705327e-05 4.999997e+00 2026-08-04 07:27:55 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:27:54.942746 End time: 2026-08-04 07:27:54.978512 2026-08-04 07:27:55 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:27:55 INFO imstat::::casa ########################################## 2026-08-04 07:27:55 INFO phaseshift::::casa ########################################## 2026-08-04 07:27:55 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:27:55 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='1', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 50.108888889deg' ) 2026-08-04 07:27:55 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:27:55 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:27:55 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:27:55 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:27:55 INFO MSTransformManager::parseDataSelParams field selection is 1 2026-08-04 07:27:55 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:27:55 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:27:55 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:27:55 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:27:55 INFO MSTransformManager::open Select data 2026-08-04 07:27:55 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:27:55 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-08-04 07:27:57 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:27:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 50.108888889deg' successfully parsed 2026-08-04 07:27:57 INFO phaseshift::::casa Shift phase center 2026-08-04 07:27:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:27:57 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:27:55.010598 End time: 2026-08-04 07:27:57.412209 2026-08-04 07:27:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:27:57 INFO phaseshift::::casa ########################################## 2026-08-04 07:27:57 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-08-04 07:27:58 INFO tclean::::casa ########################################## 2026-08-04 07:27:58 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:27:58 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:27:58 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:27:58 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:27:58 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-08-04 07:27:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:27:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:27:58 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:27:58 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99968e+08] at [0] with increment [9.99982e+07] 2026-08-04 07:27:58 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:27:58 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:27:58 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:27:58 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:27:58 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:27:58 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-08-04 07:27:59 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025996 2026-08-04 07:27:59 INFO task_tclean::SIImageStore::printBeamSet Beam : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-08-04 07:27:59 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:27:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:27:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 0.290316 2026-08-04 07:28:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:28:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:28:00 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.290316, over full image : 0.290316 2026-08-04 07:28:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.03697436675429344, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:28:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0369744, CycleNiter=20, Gain=0.3 2026-08-04 07:28:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->20 [20], model=0->1.38616, peakres=0.290316->0.18329, Reached cycleniter. 2026-08-04 07:28:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:28:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:28:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.180075, over full image : 0.180075 2026-08-04 07:28:01 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:28:01 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:28:01 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:28:01 INFO SIImageStore::restore Beam for chan : 0 : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-08-04 07:28:01 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:28:02 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:27:57.633498 End time: 2026-08-04 07:28:01.844652 2026-08-04 07:28:02 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:28:02 INFO tclean::::casa ########################################## 2026-08-04 07:28:02 INFO imstat::::casa ########################################## 2026-08-04 07:28:02 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:28:02 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:28:02 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:28:02 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:28:02 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:28:02 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:28:02 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:28:02 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz to 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz) 2026-08-04 07:28:02 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:28:02 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:28:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:28:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:28:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz 2026-08-04 07:28:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz 2026-08-04 07:28:02 INFO imstat:::: Values --- 2026-08-04 07:28:02 INFO imstat:::: -- flux density [flux]: -0.242513 Jy 2026-08-04 07:28:02 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:28:02 INFO imstat:::: -- maximum value [max]: 0.285872 Jy/beam 2026-08-04 07:28:02 INFO imstat:::: -- minimum value [min]: -0.1468 Jy/beam 2026-08-04 07:28:02 INFO imstat:::: -- position of max value (pixel) [maxpos]: [54, 120, 0, 0] 2026-08-04 07:28:02 INFO imstat:::: -- position of min value (pixel) [minpos]: [148, 28, 0, 0] 2026-08-04 07:28:02 INFO imstat:::: -- position of max value (world) [maxposf]: 19:54:51.516, +50.05.26.984, I, 9.99968e+08Hz 2026-08-04 07:28:02 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:33.445, +49.53.11.924, I, 9.99968e+08Hz 2026-08-04 07:28:02 INFO imstat:::: -- Sum of pixel values [sum]: -29.9309 Jy/beam 2026-08-04 07:28:02 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 233.452 Jy/beam.Jy/beam 2026-08-04 07:28:02 INFO imstat:::: Statistics --- 2026-08-04 07:28:02 INFO imstat:::: -- Mean of the pixel values [mean]: -0.00045671 Jy/beam 2026-08-04 07:28:02 INFO imstat:::: -- Variance of the pixel values : 0.00356204 Jy/beam 2026-08-04 07:28:02 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0596828 Jy/beam 2026-08-04 07:28:02 INFO imstat:::: -- Root mean square [rms]: 0.0596841 Jy/beam 2026-08-04 07:28:02 INFO imstat:::: -- Median of the pixel values [median]: -0.00646386 Jy/beam 2026-08-04 07:28:02 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.0391011 Jy/beam 2026-08-04 07:28:02 INFO imstat:::: -- IQR [quartile]: 0.0789052 Jy/beam 2026-08-04 07:28:02 INFO imstat:::: -- First quartile [q1]: -0.0432754 Jy/beam 2026-08-04 07:28:02 INFO imstat:::: -- Third quartile [q3]: 0.0356299 Jy/beam 2026-08-04 07:28:02 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:28:02 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:28:02 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:28:02 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:28:02 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:28:02 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:28:02 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 -2.993095e+01 -4.567100e-04 5.968411e-02 5.968282e-02 -1.468002e-01 2.858716e-01 2026-08-04 07:28:02 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:28:01.848830 End time: 2026-08-04 07:28:01.890923 2026-08-04 07:28:02 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:28:02 INFO imstat::::casa ########################################## 2026-08-04 07:28:02 INFO phaseshift::::casa ########################################## 2026-08-04 07:28:02 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:28:02 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='pretend', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 50.108888889deg' ) 2026-08-04 07:28:02 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:28:02 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:28:02 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:28:02 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:28:02 INFO MSTransformManager::parseDataSelParams field selection is pretend 2026-08-04 07:28:02 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:28:02 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:28:02 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:28:02 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:28:02 INFO MSTransformManager::open Select data 2026-08-04 07:28:02 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:28:02 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-08-04 07:28:05 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:28:05 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 50.108888889deg' successfully parsed 2026-08-04 07:28:05 INFO phaseshift::::casa Shift phase center 2026-08-04 07:28:05 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:28:05 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:28:01.907815 End time: 2026-08-04 07:28:05.150319 2026-08-04 07:28:05 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:28:05 INFO phaseshift::::casa ########################################## 2026-08-04 07:28:05 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data.ms... 2026-08-04 07:28:05 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-08-04 07:28:05 INFO tclean::::casa ########################################## 2026-08-04 07:28:05 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:28:05 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:28:05 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:28:05 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:28:05 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-08-04 07:28:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:28:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:28:05 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:28:05 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99968e+08] at [0] with increment [9.99982e+07] 2026-08-04 07:28:05 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:28:05 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:28:05 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:28:05 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:28:05 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:28:06 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-08-04 07:28:06 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027644 2026-08-04 07:28:06 INFO task_tclean::SIImageStore::printBeamSet Beam : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-08-04 07:28:06 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:28:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:28:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 0.290316 2026-08-04 07:28:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:28:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:28:08 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.290316, over full image : 0.290316 2026-08-04 07:28:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.03697436675429344, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:28:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0369744, CycleNiter=20, Gain=0.3 2026-08-04 07:28:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->20 [20], model=0->1.38616, peakres=0.290316->0.18329, Reached cycleniter. 2026-08-04 07:28:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:28:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:28:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.180075, over full image : 0.180075 2026-08-04 07:28:09 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:28:09 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:28:09 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:28:10 INFO SIImageStore::restore Beam for chan : 0 : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-08-04 07:28:10 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:28:11 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:28:05.251421 End time: 2026-08-04 07:28:11.055696 2026-08-04 07:28:11 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:28:11 INFO tclean::::casa ########################################## 2026-08-04 07:28:11 INFO imstat::::casa ########################################## 2026-08-04 07:28:11 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:28:11 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:28:11 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:28:11 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:28:11 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:28:11 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:28:11 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:28:11 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz to 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz) 2026-08-04 07:28:11 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:28:11 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:28:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:28:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:28:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz 2026-08-04 07:28:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz 2026-08-04 07:28:11 INFO imstat:::: Values --- 2026-08-04 07:28:11 INFO imstat:::: -- flux density [flux]: -0.242513 Jy 2026-08-04 07:28:11 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:28:11 INFO imstat:::: -- maximum value [max]: 0.285872 Jy/beam 2026-08-04 07:28:11 INFO imstat:::: -- minimum value [min]: -0.1468 Jy/beam 2026-08-04 07:28:11 INFO imstat:::: -- position of max value (pixel) [maxpos]: [54, 120, 0, 0] 2026-08-04 07:28:11 INFO imstat:::: -- position of min value (pixel) [minpos]: [148, 28, 0, 0] 2026-08-04 07:28:11 INFO imstat:::: -- position of max value (world) [maxposf]: 19:54:51.516, +50.05.26.984, I, 9.99968e+08Hz 2026-08-04 07:28:11 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:33.445, +49.53.11.924, I, 9.99968e+08Hz 2026-08-04 07:28:11 INFO imstat:::: -- Sum of pixel values [sum]: -29.9309 Jy/beam 2026-08-04 07:28:11 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 233.452 Jy/beam.Jy/beam 2026-08-04 07:28:11 INFO imstat:::: Statistics --- 2026-08-04 07:28:11 INFO imstat:::: -- Mean of the pixel values [mean]: -0.00045671 Jy/beam 2026-08-04 07:28:11 INFO imstat:::: -- Variance of the pixel values : 0.00356204 Jy/beam 2026-08-04 07:28:11 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0596828 Jy/beam 2026-08-04 07:28:11 INFO imstat:::: -- Root mean square [rms]: 0.0596841 Jy/beam 2026-08-04 07:28:11 INFO imstat:::: -- Median of the pixel values [median]: -0.00646386 Jy/beam 2026-08-04 07:28:11 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.0391011 Jy/beam 2026-08-04 07:28:11 INFO imstat:::: -- IQR [quartile]: 0.0789052 Jy/beam 2026-08-04 07:28:11 INFO imstat:::: -- First quartile [q1]: -0.0432754 Jy/beam 2026-08-04 07:28:11 INFO imstat:::: -- Third quartile [q3]: 0.0356299 Jy/beam 2026-08-04 07:28:11 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:28:11 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:28:11 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:28:11 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:28:11 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:28:11 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:28:11 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 -2.993095e+01 -4.567100e-04 5.968411e-02 5.968282e-02 -1.468002e-01 2.858716e-01 2026-08-04 07:28:11 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:28:11.058153 End time: 2026-08-04 07:28:11.078761 2026-08-04 07:28:11 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:28:11 INFO imstat::::casa ########################################## .2026-08-04 07:28:11 INFO tclean::::casa ########################################## 2026-08-04 07:28:11 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:28:11 INFO tclean::::casa tclean( vis='sim_data.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_orig', imsize=2048, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='wproject', facets=1, psfphasecenter='', wprojplanes=128, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:28:11 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:28:11 INFO SynthesisImagerVi2::selectData MS : sim_data.ms | [Opened in readonly mode] 2026-08-04 07:28:11 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:28:11 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_orig] : 2026-08-04 07:28:11 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_orig] : 2026-08-04 07:28:11 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:28:11 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [9.99981e+08] at [0] with increment [1e+08] 2026-08-04 07:28:11 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_orig] with ftmachine : wprojectft 2026-08-04 07:28:11 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 47.58 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:28:11 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:28:11 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_orig] : hogbom 2026-08-04 07:28:11 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:28:13 INFO task_tclean::WPConvFunc::findConvFunction W projection using 128 planes 2026-08-04 07:28:13 INFO task_tclean::WPConvFunc::findConvFunction Using maximum possible W = 6445.78 (wavelengths) 2026-08-04 07:28:13 INFO task_tclean::WPConvFunc::findConvFunction Typical wavelength = 0.299799 (m) 2026-08-04 07:28:13 INFO task_tclean::WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.399639 wavelengths per pixel 2026-08-04 07:28:29 INFO task_tclean::WPConvFunc::findConvFunction Convolution support = [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 24, 24, 24, 24, 24, 24, 24, 24, 24, 28, 28, 28, 28, 28, 28, 28, 32, 32, 32, 32, 32, 32, 36, 36, 36, 36, 36, 36, 40, 40, 40, 40, 40, 44, 44, 44, 44, 44, 48, 48, 48, 48, 52, 52, 52, 52, 52, 56, 56, 56, 56, 60, 60, 60, 60, 64, 64, 64, 64, 68, 68, 68, 72, 72, 72, 72, 76, 76, 76, 80, 80, 80, 80, 84, 84, 84, 88, 88, 88, 92, 92, 92, 96, 96, 96, 100, 100, 100, 104, 104, 108, 108, 108, 112, 112, 112, 116, 116] pixels in Fourier plane 2026-08-04 07:28:29 INFO task_tclean::WPConvFunc::findConvFunction Memory used in gridding function = 14 MB from maximum 64265 MB 2026-08-04 07:28:31 INFO task_tclean::SIImageStore::calcSensitivity [im_orig] Theoretical sensitivity (Jy/bm):0.00889437 2026-08-04 07:28:32 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.084353 2026-08-04 07:28:32 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.6975 arcsec, 77.5413 arcsec, -89.6046 deg 2026-08-04 07:28:32 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:28:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:28:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 4.94899 2026-08-04 07:28:35 INFO SynthesisDeconvolver::setupMask [im_orig] Initializing new mask to 1.0 for the full image 2026-08-04 07:28:35 INFO SynthesisDeconvolver::setupMask [im_orig] Number of pixels in the clean mask : 4.1943e+06 out of a total of 4.1943e+06 pixels. [ 100 % ] 2026-08-04 07:28:35 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 4.94899, over full image : 4.94899 2026-08-04 07:28:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.5971387624740601, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:28:35 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.597139, CycleNiter=20, Gain=0.3 2026-08-04 07:28:37 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->7 [7], model=0->4.6028, peakres=4.94899->0.435227, Reached cyclethreshold. 2026-08-04 07:28:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 7 iterations. 2026-08-04 07:28:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:28:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.45574, over full image : 0.45574 2026-08-04 07:28:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 13, 'cyclethreshold': 0.05498892068862915, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:28:40 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.0549889, CycleNiter=13, Gain=0.3 2026-08-04 07:28:41 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->7 [7], model=4.6028->5.02619, peakres=0.45574->0.0435268, Reached cyclethreshold. 2026-08-04 07:28:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 14 iterations. 2026-08-04 07:28:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:28:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0416506, over full image : 0.0416506 2026-08-04 07:28:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 6, 'cyclethreshold': 0.005025508347898722, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:28:45 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.00502551, CycleNiter=6, Gain=0.3 2026-08-04 07:28:46 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->6 [6], model=5.02619->5.04001, peakres=0.0416506->0.0226678, Reached cycleniter. 2026-08-04 07:28:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:28:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:28:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.022671, over full image : 0.022671 2026-08-04 07:28:49 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:28:49 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:28:49 INFO SDAlgorithmBase::restore [im_orig] : Restoring model image. 2026-08-04 07:28:51 INFO SIImageStore::restore Beam for chan : 0 : 88.6975 arcsec, 77.5413 arcsec, -89.6046 deg 2026-08-04 07:28:52 INFO tclean::::casa Searching for images with prefix 'im_orig'... Found these, writing history into them: ['im_orig.model', 'im_orig.sumwt', 'im_orig.residual', 'im_orig.psf', 'im_orig.pb', 'im_orig.image', 'im_orig.mask'] 2026-08-04 07:28:53 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:28:11.251130 End time: 2026-08-04 07:28:52.852837 2026-08-04 07:28:53 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:28:53 INFO tclean::::casa ########################################## 2026-08-04 07:28:53 INFO imstat::::casa ########################################## 2026-08-04 07:28:53 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:28:53 INFO imstat::::casa imstat( imagename='im_orig.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:28:53 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:28:53 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:28:53 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:28:53 INFO imstat::image::statistics Determining stats for image im_orig.image 2026-08-04 07:28:53 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:28:53 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [2047, 2047, 0, 0] (20:11:05.220, +38.21.11.967, I, 999980841.3Hz to 19:47:03.322, +42.54.02.996, I, 999980841.3Hz) 2026-08-04 07:28:53 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:28:53 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:28:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:28:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [2047, 2047, 0, 0] 2026-08-04 07:28:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 20:11:05.220, +38.21.11.967, I, 999980841.3Hz 2026-08-04 07:28:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:47:03.322, +42.54.02.996, I, 999980841.3Hz 2026-08-04 07:28:53 INFO imstat:::: Values --- 2026-08-04 07:28:53 INFO imstat:::: -- flux density [flux]: 5.2713 Jy 2026-08-04 07:28:53 INFO imstat:::: -- number of points [npts]: 4.1943e+06 2026-08-04 07:28:53 INFO imstat:::: -- maximum value [max]: 4.97713 Jy/beam 2026-08-04 07:28:53 INFO imstat:::: -- minimum value [min]: -0.022671 Jy/beam 2026-08-04 07:28:53 INFO imstat:::: -- position of max value (pixel) [maxpos]: [1509, 773, 0, 0] 2026-08-04 07:28:53 INFO imstat:::: -- position of min value (pixel) [minpos]: [1708, 965, 0, 0] 2026-08-04 07:28:53 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.302, +40.06.02.372, I, 999980841.3Hz 2026-08-04 07:28:53 INFO imstat:::: -- position of min value (world) [minposf]: 19:51:28.525, +40.31.07.260, I, 999980841.3Hz 2026-08-04 07:28:53 INFO imstat:::: -- Sum of pixel values [sum]: 641.87 Jy/beam 2026-08-04 07:28:53 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1619.58 Jy/beam.Jy/beam 2026-08-04 07:28:53 INFO imstat:::: Statistics --- 2026-08-04 07:28:53 INFO imstat:::: -- Mean of the pixel values [mean]: 0.000153034 Jy/beam 2026-08-04 07:28:53 INFO imstat:::: -- Variance of the pixel values : 0.000386116 Jy/beam 2026-08-04 07:28:53 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0196498 Jy/beam 2026-08-04 07:28:53 INFO imstat:::: -- Root mean square [rms]: 0.0196504 Jy/beam 2026-08-04 07:28:53 INFO imstat:::: -- Median of the pixel values [median]: 4.62212e-06 Jy/beam 2026-08-04 07:28:53 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.003161 Jy/beam 2026-08-04 07:28:53 INFO imstat:::: -- IQR [quartile]: 0.00632194 Jy/beam 2026-08-04 07:28:53 INFO imstat:::: -- First quartile [q1]: -0.00315522 Jy/beam 2026-08-04 07:28:53 INFO imstat:::: -- Third quartile [q3]: 0.00316673 Jy/beam 2026-08-04 07:28:53 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:28:53 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:28:53 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:28:53 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:28:53 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:28:53 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:28:53 INFO imstat::ImageStatsCalculator::statistics 4.194304e+06 6.418700e+02 1.530337e-04 1.965042e-02 1.964982e-02 -2.267099e-02 4.977134e+00 2026-08-04 07:28:53 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:28:52.858640 End time: 2026-08-04 07:28:53.244474 2026-08-04 07:28:53 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:28:53 INFO imstat::::casa ########################################## 2026-08-04 07:28:53 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:28:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:28:53 INFO ImageRegion::fromRecord+ [1499, 763, 0, 0] to [1519, 783, 0, 0] (19:53:57.382, +40.04.43.647, I, 999980841.3Hz to 19:53:43.216, +40.07.21.070, I, 999980841.3Hz) 2026-08-04 07:28:53 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:28:53 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:28:53 2026****** 2026-08-04 07:28:53 INFO ImageFitter::fit+ 2026-08-04 07:28:53 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:28:53 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_orig.image 2026-08-04 07:28:53 INFO ImageFitter::fit+ --- region: 2026-08-04 07:28:53 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:28:53 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:28:53 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:28:53 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:28:53 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:28:53 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:28:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:28:53 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.843, +40.05.23.013 to 19:53:46.759, +40.06.41.724) 2026-08-04 07:28:53 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29832 Jy 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00459192 Jy 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85855 Jy 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00458731 Jy 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ Fit on im_orig.image component 0 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.9885 +/- 0.0032 s (0.0367 arcsec along great circle) 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.0594 +/- 0.0281 arcsec 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ --- ra: 1509.4535 +/- 0.0046 pixels 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ --- dec: 772.7181 +/- 0.0035 pixels 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.4778 +/- 0.0014 arcmin 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.2915 +/- 0.0011 arcmin 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.42 +/- 0.26 deg 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.70 arcsec 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.54 arcsec 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ --- position angle: -89.60 deg 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ Component is a point source 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ An upper limit on its size cannot be determined 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ --- Integrated: 5.0049 +/- 0.0079 Jy 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ --- Peak: 5.0102 +/- 0.0046 Jy/beam 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:28:53 INFO ImageFitter::_fitLoop+ --- frequency: 999.9808 MHz (29.97982 cm) 2026-08-04 07:28:53 INFO phaseshift::::casa ########################################## 2026-08-04 07:28:53 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:28:53 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-08-04 07:28:53 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:28:53 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:28:53 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:28:53 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:28:53 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:28:53 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:28:53 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:28:53 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:28:53 INFO MSTransformManager::open Select data 2026-08-04 07:28:53 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:29:04 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:29:04 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-08-04 07:29:04 INFO phaseshift::::casa Shift phase center 2026-08-04 07:29:05 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:29:05 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:28:53.348648 End time: 2026-08-04 07:29:04.735658 2026-08-04 07:29:05 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:29:05 INFO phaseshift::::casa ########################################## 2026-08-04 07:29:05 INFO tclean::::casa ########################################## 2026-08-04 07:29:05 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:29:05 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:29:05 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:29:05 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:29:05 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:29:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:29:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:29:05 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:29:05 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:29:05 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:29:05 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:29:05 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:29:05 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:29:05 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:29:06 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:29:06 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026979 2026-08-04 07:29:06 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:29:06 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:29:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:29:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:29:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:29:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:29:08 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:29:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:29:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:29:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:29:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:29:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:29:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:29:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:29:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:29:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:29:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:29:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:29:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:29:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:29:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:29:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:29:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:29:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:29:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:29:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:29:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:29:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:29:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:29:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:29:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:29:15 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:29:15 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:29:15 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:29:16 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:29:16 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:29:17 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:29:04.887724 End time: 2026-08-04 07:29:17.211013 2026-08-04 07:29:17 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:29:17 INFO tclean::::casa ########################################## 2026-08-04 07:29:17 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:29:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:29:17 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:29:17 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:29:17 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:29:17 2026****** 2026-08-04 07:29:17 INFO ImageFitter::fit+ 2026-08-04 07:29:17 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:29:17 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:29:17 INFO ImageFitter::fit+ --- region: 2026-08-04 07:29:17 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:29:17 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:29:17 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:29:17 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:29:17 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:29:17 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:29:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:29:17 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:29:17 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:29:17 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:29:17 INFO imstat::::casa ########################################## 2026-08-04 07:29:17 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:29:17 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:29:17 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:29:17 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:29:17 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:29:17 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:29:17 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:29:17 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:29:17 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:29:17 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:29:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:29:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:29:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:29:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:29:17 INFO imstat:::: Values --- 2026-08-04 07:29:17 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:29:17 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:29:17 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:29:17 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-08-04 07:29:17 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:29:17 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:29:17 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:29:17 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:29:17 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:29:17 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:29:17 INFO imstat:::: Statistics --- 2026-08-04 07:29:17 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:29:17 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:29:17 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:29:17 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:29:17 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-08-04 07:29:17 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-08-04 07:29:17 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-08-04 07:29:17 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-08-04 07:29:17 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-08-04 07:29:17 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:29:17 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:29:17 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:29:17 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:29:17 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:29:17 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:29:17 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777660e-05 4.999996e+00 2026-08-04 07:29:17 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:29:17.289080 End time: 2026-08-04 07:29:17.315859 2026-08-04 07:29:17 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:29:17 INFO imstat::::casa ########################################## 2026-08-04 07:29:17 INFO phaseshift::::casa ########################################## 2026-08-04 07:29:17 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:29:17 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 02:40:24.0000' ) 2026-08-04 07:29:17 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:29:17 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:29:17 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:29:17 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:29:17 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:29:17 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:29:17 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:29:17 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:29:17 INFO MSTransformManager::open Select data 2026-08-04 07:29:17 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:29:20 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0000" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-08-04 07:29:20 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 02:40:24.0000' successfully parsed 2026-08-04 07:29:20 INFO phaseshift::::casa Shift phase center 2026-08-04 07:29:21 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:29:21 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:29:17.333035 End time: 2026-08-04 07:29:20.946212 2026-08-04 07:29:21 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:29:21 INFO phaseshift::::casa ########################################## 2026-08-04 07:29:21 INFO tclean::::casa ########################################## 2026-08-04 07:29:21 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:29:21 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:29:21 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:29:21 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:29:21 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:29:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:29:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:29:21 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:29:21 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:29:21 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:29:21 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:29:21 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:29:21 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:29:21 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:29:22 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:29:22 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027554 2026-08-04 07:29:22 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:29:23 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:29:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:29:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:29:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:29:24 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:29:24 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:29:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:29:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:29:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:29:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:29:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:29:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:29:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:29:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:29:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:29:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:29:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:29:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:29:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:29:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:29:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:29:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:29:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:29:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:29:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:29:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:29:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:29:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:29:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:29:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:29:32 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:29:32 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:29:32 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:29:32 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:29:33 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:29:34 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:29:21.003132 End time: 2026-08-04 07:29:33.595489 2026-08-04 07:29:34 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:29:34 INFO tclean::::casa ########################################## 2026-08-04 07:29:34 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:29:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:29:34 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:29:34 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:29:34 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:29:34 2026****** 2026-08-04 07:29:34 INFO ImageFitter::fit+ 2026-08-04 07:29:34 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:29:34 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:29:34 INFO ImageFitter::fit+ --- region: 2026-08-04 07:29:34 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:29:34 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:29:34 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:29:34 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:29:34 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:29:34 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:29:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:29:34 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:29:34 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:29:34 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:29:34 INFO imstat::::casa ########################################## 2026-08-04 07:29:34 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:29:34 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:29:34 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:29:34 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:29:34 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:29:34 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:29:34 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:29:34 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:29:34 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:29:34 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:29:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:29:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:29:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:29:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:29:34 INFO imstat:::: Values --- 2026-08-04 07:29:34 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:29:34 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:29:34 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:29:34 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-08-04 07:29:34 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:29:34 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:29:34 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:29:34 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:29:34 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:29:34 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:29:34 INFO imstat:::: Statistics --- 2026-08-04 07:29:34 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:29:34 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:29:34 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:29:34 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:29:34 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-08-04 07:29:34 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-08-04 07:29:34 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-08-04 07:29:34 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-08-04 07:29:34 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-08-04 07:29:34 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:29:34 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:29:34 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:29:34 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:29:34 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:29:34 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:29:34 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777660e-05 4.999996e+00 2026-08-04 07:29:34 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:29:33.647094 End time: 2026-08-04 07:29:33.672590 2026-08-04 07:29:34 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:29:34 INFO imstat::::casa ########################################## 2026-08-04 07:29:34 INFO phaseshift::::casa ########################################## 2026-08-04 07:29:34 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:29:34 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.100000000deg' ) 2026-08-04 07:29:34 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:29:34 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:29:34 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:29:34 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:29:34 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:29:34 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:29:34 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:29:34 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:29:34 INFO MSTransformManager::open Select data 2026-08-04 07:29:34 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:29:35 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:29:35 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.100000000deg' successfully parsed 2026-08-04 07:29:35 INFO phaseshift::::casa Shift phase center 2026-08-04 07:29:36 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:29:36 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:29:33.692493 End time: 2026-08-04 07:29:36.182345 2026-08-04 07:29:36 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:29:36 INFO phaseshift::::casa ########################################## 2026-08-04 07:29:36 INFO tclean::::casa ########################################## 2026-08-04 07:29:36 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:29:36 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:29:36 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:29:36 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:29:36 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:29:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:29:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:29:36 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:29:36 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:29:36 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:29:36 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:29:36 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:29:36 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:29:36 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:29:37 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:29:37 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026206 2026-08-04 07:29:37 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:29:37 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:29:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:29:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:29:39 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:29:39 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:29:39 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:29:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:29:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:29:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:29:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:29:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:29:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:29:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:29:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:29:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:29:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:29:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:29:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:29:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:29:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:29:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:29:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:29:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:29:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:29:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:29:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:29:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:29:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:29:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:29:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:29:43 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:29:43 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:29:43 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:29:44 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:29:44 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:29:45 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:29:36.224002 End time: 2026-08-04 07:29:45.005471 2026-08-04 07:29:45 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:29:45 INFO tclean::::casa ########################################## 2026-08-04 07:29:45 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:29:45 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:29:45 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:29:45 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:29:45 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:29:45 2026****** 2026-08-04 07:29:45 INFO ImageFitter::fit+ 2026-08-04 07:29:45 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:29:45 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:29:45 INFO ImageFitter::fit+ --- region: 2026-08-04 07:29:45 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:29:45 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:29:45 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:29:45 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:29:45 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:29:45 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:29:45 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:29:45 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:29:45 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:29:45 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:29:45 INFO imstat::::casa ########################################## 2026-08-04 07:29:45 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:29:45 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:29:45 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:29:45 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:29:45 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:29:45 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:29:45 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:29:45 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:29:45 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:29:45 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:29:45 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:29:45 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:29:45 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:29:45 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:29:45 INFO imstat:::: Values --- 2026-08-04 07:29:45 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:29:45 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:29:45 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:29:45 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-08-04 07:29:45 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:29:45 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:29:45 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:29:45 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:29:45 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:29:45 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:29:45 INFO imstat:::: Statistics --- 2026-08-04 07:29:45 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:29:45 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:29:45 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:29:45 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:29:45 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-08-04 07:29:45 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-08-04 07:29:45 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-08-04 07:29:45 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-08-04 07:29:45 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-08-04 07:29:45 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:29:45 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:29:45 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:29:45 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:29:45 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:29:45 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:29:45 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777660e-05 4.999996e+00 2026-08-04 07:29:45 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:29:45.074286 End time: 2026-08-04 07:29:45.099493 2026-08-04 07:29:45 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:29:45 INFO imstat::::casa ########################################## 2026-08-04 07:29:45 INFO phaseshift::::casa ########################################## 2026-08-04 07:29:45 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:29:45 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 0.699877030rad' ) 2026-08-04 07:29:45 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:29:45 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:29:45 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:29:45 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:29:45 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:29:45 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:29:45 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:29:45 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:29:45 INFO MSTransformManager::open Select data 2026-08-04 07:29:45 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:29:47 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:29:47 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 0.699877030rad' successfully parsed 2026-08-04 07:29:47 INFO phaseshift::::casa Shift phase center 2026-08-04 07:29:48 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:29:48 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:29:45.115960 End time: 2026-08-04 07:29:47.868433 2026-08-04 07:29:48 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:29:48 INFO phaseshift::::casa ########################################## 2026-08-04 07:29:48 INFO tclean::::casa ########################################## 2026-08-04 07:29:48 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:29:48 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:29:48 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:29:48 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:29:48 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:29:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:29:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:29:48 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:29:48 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:29:48 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:29:48 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:29:48 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:29:48 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:29:48 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:29:50 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:29:50 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027618 2026-08-04 07:29:50 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:29:50 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:29:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:29:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:29:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:29:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:29:53 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:29:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:29:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:29:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:29:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:29:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:29:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:29:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:29:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:29:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:29:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:29:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:29:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:29:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:29:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:29:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:29:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:29:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:29:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:29:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:29:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:30:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:30:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:30:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:30:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:30:02 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:30:02 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:30:02 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:30:03 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:30:04 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:30:06 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:29:47.919343 End time: 2026-08-04 07:30:06.122610 2026-08-04 07:30:06 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:30:06 INFO tclean::::casa ########################################## 2026-08-04 07:30:06 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:30:06 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:30:06 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:30:06 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:30:06 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:30:06 2026****** 2026-08-04 07:30:06 INFO ImageFitter::fit+ 2026-08-04 07:30:06 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:30:06 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:30:06 INFO ImageFitter::fit+ --- region: 2026-08-04 07:30:06 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:30:06 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:30:06 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:30:06 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:30:06 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:30:06 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:30:06 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:30:06 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:30:06 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:30:06 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:30:06 INFO imstat::::casa ########################################## 2026-08-04 07:30:06 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:30:06 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:30:06 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:30:06 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:30:06 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:30:06 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:30:06 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:30:06 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:30:06 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:30:06 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:30:06 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:30:06 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:30:06 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:30:06 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:30:06 INFO imstat:::: Values --- 2026-08-04 07:30:06 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:30:06 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:30:06 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:30:06 INFO imstat:::: -- minimum value [min]: -7.77764e-05 Jy/beam 2026-08-04 07:30:06 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:30:06 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-08-04 07:30:06 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:30:06 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-08-04 07:30:06 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:30:06 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:30:06 INFO imstat:::: Statistics --- 2026-08-04 07:30:06 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:30:06 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:30:06 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:30:06 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:30:06 INFO imstat:::: -- Median of the pixel values [median]: -1.86664e-05 Jy/beam 2026-08-04 07:30:06 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-08-04 07:30:06 INFO imstat:::: -- IQR [quartile]: 3.56255e-05 Jy/beam 2026-08-04 07:30:06 INFO imstat:::: -- First quartile [q1]: -3.45078e-05 Jy/beam 2026-08-04 07:30:06 INFO imstat:::: -- Third quartile [q3]: 1.11764e-06 Jy/beam 2026-08-04 07:30:06 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:30:06 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:30:06 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:30:06 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:30:06 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:30:06 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:30:06 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777640e-05 4.999996e+00 2026-08-04 07:30:06 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:30:06.202511 End time: 2026-08-04 07:30:06.238456 2026-08-04 07:30:06 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:30:06 INFO imstat::::casa ########################################## 2026-08-04 07:30:06 INFO phaseshift::::casa ########################################## 2026-08-04 07:30:06 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:30:06 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 40d06m00' ) 2026-08-04 07:30:06 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:30:06 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:30:06 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:30:06 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:30:06 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:30:06 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:30:06 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:30:06 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:30:06 INFO MSTransformManager::open Select data 2026-08-04 07:30:06 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:30:10 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:30:10 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 40d06m00' successfully parsed 2026-08-04 07:30:10 INFO phaseshift::::casa Shift phase center 2026-08-04 07:30:12 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:30:12 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:30:06.255185 End time: 2026-08-04 07:30:12.172658 2026-08-04 07:30:12 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:30:12 INFO phaseshift::::casa ########################################## 2026-08-04 07:30:12 INFO tclean::::casa ########################################## 2026-08-04 07:30:12 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:30:12 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:30:12 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:30:12 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:30:12 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:30:12 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:30:12 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:30:12 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:30:12 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:30:12 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:30:12 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:30:12 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:30:12 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:30:12 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:30:15 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:30:15 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02604 2026-08-04 07:30:15 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:30:15 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:30:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:30:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:30:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:30:20 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:30:20 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:30:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:30:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:30:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:30:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:30:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:30:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:30:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:30:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:30:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:30:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:30:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:30:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:30:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:30:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:30:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:30:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:30:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:30:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:30:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:30:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:30:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:30:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:30:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:30:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:30:26 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:30:26 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:30:26 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:30:26 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:30:26 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:30:28 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:30:12.229790 End time: 2026-08-04 07:30:28.140816 2026-08-04 07:30:28 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:30:28 INFO tclean::::casa ########################################## 2026-08-04 07:30:28 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:30:28 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:30:28 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:30:28 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:30:28 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:30:28 2026****** 2026-08-04 07:30:28 INFO ImageFitter::fit+ 2026-08-04 07:30:28 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:30:28 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:30:28 INFO ImageFitter::fit+ --- region: 2026-08-04 07:30:28 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:30:28 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:30:28 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:30:28 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:30:28 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:30:28 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:30:28 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:30:28 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:30:28 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:30:28 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:30:28 INFO imstat::::casa ########################################## 2026-08-04 07:30:28 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:30:28 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:30:28 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:30:28 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:30:28 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:30:28 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:30:28 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:30:28 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:30:28 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:30:28 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:30:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:30:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:30:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:30:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:30:28 INFO imstat:::: Values --- 2026-08-04 07:30:28 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:30:28 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:30:28 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:30:28 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-08-04 07:30:28 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:30:28 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:30:28 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:30:28 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:30:28 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:30:28 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:30:28 INFO imstat:::: Statistics --- 2026-08-04 07:30:28 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:30:28 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:30:28 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:30:28 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:30:28 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-08-04 07:30:28 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-08-04 07:30:28 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-08-04 07:30:28 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-08-04 07:30:28 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-08-04 07:30:28 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:30:28 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:30:28 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:30:28 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:30:28 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:30:28 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:30:28 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777660e-05 4.999996e+00 2026-08-04 07:30:28 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:30:28.213614 End time: 2026-08-04 07:30:28.240349 2026-08-04 07:30:28 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:30:28 INFO imstat::::casa ########################################## 2026-08-04 07:30:28 INFO phaseshift::::casa ########################################## 2026-08-04 07:30:28 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:30:28 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 02:40:24.0000' ) 2026-08-04 07:30:28 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:30:28 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:30:28 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:30:28 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:30:28 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:30:28 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:30:28 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:30:28 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:30:28 INFO MSTransformManager::open Select data 2026-08-04 07:30:28 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:30:32 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0000" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-08-04 07:30:32 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 02:40:24.0000' successfully parsed 2026-08-04 07:30:32 INFO phaseshift::::casa Shift phase center 2026-08-04 07:30:33 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:30:33 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:30:28.257085 End time: 2026-08-04 07:30:32.856547 2026-08-04 07:30:33 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:30:33 INFO phaseshift::::casa ########################################## 2026-08-04 07:30:33 INFO tclean::::casa ########################################## 2026-08-04 07:30:33 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:30:33 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:30:33 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:30:33 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:30:33 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:30:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:30:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:30:33 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:30:33 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:30:33 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:30:33 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:30:33 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:30:33 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:30:33 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:30:36 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:30:36 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028366 2026-08-04 07:30:36 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:30:36 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:30:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:30:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:30:39 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:30:39 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:30:39 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:30:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:30:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:30:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:30:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:30:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:30:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:30:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:30:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:30:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:30:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:30:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:30:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:30:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:30:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:30:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:30:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:30:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:30:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:30:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:30:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:30:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:30:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:30:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:30:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:30:49 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:30:49 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:30:49 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:30:50 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:30:50 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:30:52 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:30:32.916764 End time: 2026-08-04 07:30:51.904834 2026-08-04 07:30:52 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:30:52 INFO tclean::::casa ########################################## 2026-08-04 07:30:52 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:30:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:30:52 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:30:52 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:30:52 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:30:52 2026****** 2026-08-04 07:30:52 INFO ImageFitter::fit+ 2026-08-04 07:30:52 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:30:52 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:30:52 INFO ImageFitter::fit+ --- region: 2026-08-04 07:30:52 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:30:52 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:30:52 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:30:52 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:30:52 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:30:52 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:30:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:30:52 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:30:52 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:30:52 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:30:52 INFO imstat::::casa ########################################## 2026-08-04 07:30:52 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:30:52 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:30:52 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:30:52 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:30:52 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:30:52 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:30:52 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:30:52 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:30:52 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:30:52 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:30:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:30:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:30:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:30:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:30:52 INFO imstat:::: Values --- 2026-08-04 07:30:52 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:30:52 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:30:52 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:30:52 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-08-04 07:30:52 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:30:52 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:30:52 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:30:52 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:30:52 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:30:52 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:30:52 INFO imstat:::: Statistics --- 2026-08-04 07:30:52 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:30:52 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:30:52 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:30:52 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:30:52 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-08-04 07:30:52 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-08-04 07:30:52 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-08-04 07:30:52 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-08-04 07:30:52 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-08-04 07:30:52 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:30:52 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:30:52 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:30:52 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:30:52 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:30:52 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:30:52 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777660e-05 4.999996e+00 2026-08-04 07:30:52 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:30:51.994225 End time: 2026-08-04 07:30:52.028926 2026-08-04 07:30:52 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:30:52 INFO imstat::::casa ########################################## 2026-08-04 07:30:53 INFO phaseshift::::casa ########################################## 2026-08-04 07:30:53 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:30:53 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 40.100000000deg' ) 2026-08-04 07:30:53 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:30:53 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:30:53 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:30:53 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:30:53 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:30:53 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:30:53 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:30:53 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:30:53 INFO MSTransformManager::open Select data 2026-08-04 07:30:53 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:30:56 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:30:56 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 40.100000000deg' successfully parsed 2026-08-04 07:30:56 INFO phaseshift::::casa Shift phase center 2026-08-04 07:30:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:30:57 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:30:52.926833 End time: 2026-08-04 07:30:56.834369 2026-08-04 07:30:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:30:57 INFO phaseshift::::casa ########################################## 2026-08-04 07:30:57 INFO tclean::::casa ########################################## 2026-08-04 07:30:57 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:30:57 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:30:57 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:30:57 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:30:57 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:30:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:30:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:30:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:30:57 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:30:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:30:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:30:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:30:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:30:57 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:30:58 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:30:58 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020627 2026-08-04 07:30:58 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:30:58 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:30:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:31:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:31:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:31:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:31:00 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:31:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:31:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:31:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:31:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:31:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:31:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:31:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:31:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:31:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:31:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:31:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:31:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:31:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:31:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:31:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:31:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:31:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:31:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:31:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:31:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:31:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:31:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:31:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:31:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:31:08 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:31:08 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:31:08 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:31:10 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:31:10 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:31:12 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:30:56.890667 End time: 2026-08-04 07:31:11.903895 2026-08-04 07:31:12 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:31:12 INFO tclean::::casa ########################################## 2026-08-04 07:31:12 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:31:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:31:12 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:31:12 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:31:12 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:31:12 2026****** 2026-08-04 07:31:12 INFO ImageFitter::fit+ 2026-08-04 07:31:12 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:31:12 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:31:12 INFO ImageFitter::fit+ --- region: 2026-08-04 07:31:12 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:31:12 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:31:12 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:31:12 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:31:12 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:31:12 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:31:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:31:12 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:31:12 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:31:12 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:31:12 INFO imstat::::casa ########################################## 2026-08-04 07:31:12 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:31:12 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:31:12 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:31:12 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:31:12 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:31:12 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:31:12 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:31:12 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:31:12 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:31:12 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:31:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:31:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:31:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:31:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:31:12 INFO imstat:::: Values --- 2026-08-04 07:31:12 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:31:12 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:31:12 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:31:12 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-08-04 07:31:12 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:31:12 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:31:12 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:31:12 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:31:12 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:31:12 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:31:12 INFO imstat:::: Statistics --- 2026-08-04 07:31:12 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:31:12 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:31:12 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:31:12 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:31:12 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-08-04 07:31:12 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-08-04 07:31:12 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-08-04 07:31:12 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-08-04 07:31:12 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-08-04 07:31:12 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:31:12 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:31:12 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:31:12 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:31:12 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:31:12 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:31:12 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777660e-05 4.999996e+00 2026-08-04 07:31:12 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:31:11.973233 End time: 2026-08-04 07:31:11.998496 2026-08-04 07:31:12 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:31:12 INFO imstat::::casa ########################################## 2026-08-04 07:31:12 INFO phaseshift::::casa ########################################## 2026-08-04 07:31:12 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:31:12 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 0.699877030rad' ) 2026-08-04 07:31:12 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:31:12 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:31:12 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:31:12 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:31:12 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:31:12 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:31:12 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:31:12 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:31:12 INFO MSTransformManager::open Select data 2026-08-04 07:31:12 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:31:16 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:31:16 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 0.699877030rad' successfully parsed 2026-08-04 07:31:16 INFO phaseshift::::casa Shift phase center 2026-08-04 07:31:17 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:31:17 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:31:12.015162 End time: 2026-08-04 07:31:17.393983 2026-08-04 07:31:17 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:31:17 INFO phaseshift::::casa ########################################## 2026-08-04 07:31:17 INFO tclean::::casa ########################################## 2026-08-04 07:31:17 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:31:17 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:31:17 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:31:17 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:31:17 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:31:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:31:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:31:18 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:31:18 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:31:18 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:31:18 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:31:18 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:31:18 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:31:18 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:31:19 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:31:19 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027423 2026-08-04 07:31:19 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:31:19 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:31:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:31:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:31:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:31:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:31:21 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:31:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:31:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:31:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:31:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:31:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:31:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:31:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:31:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:31:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:31:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:31:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:31:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:31:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:31:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:31:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:31:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:31:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:31:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:31:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:31:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:31:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:31:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:31:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:31:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:31:28 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:31:28 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:31:28 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:31:29 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:31:29 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:31:30 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:31:17.451294 End time: 2026-08-04 07:31:29.756804 2026-08-04 07:31:30 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:31:30 INFO tclean::::casa ########################################## 2026-08-04 07:31:30 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:31:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:31:30 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:31:30 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:31:30 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:31:30 2026****** 2026-08-04 07:31:30 INFO ImageFitter::fit+ 2026-08-04 07:31:30 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:31:30 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:31:30 INFO ImageFitter::fit+ --- region: 2026-08-04 07:31:30 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:31:30 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:31:30 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:31:30 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:31:30 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:31:30 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:31:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:31:30 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:31:30 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:31:30 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:31:30 INFO imstat::::casa ########################################## 2026-08-04 07:31:30 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:31:30 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:31:30 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:31:30 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:31:30 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:31:30 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:31:30 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:31:30 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:31:30 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:31:30 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:31:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:31:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:31:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:31:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:31:30 INFO imstat:::: Values --- 2026-08-04 07:31:30 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:31:30 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:31:30 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:31:30 INFO imstat:::: -- minimum value [min]: -7.77764e-05 Jy/beam 2026-08-04 07:31:30 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:31:30 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-08-04 07:31:30 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:31:30 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-08-04 07:31:30 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:31:30 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:31:30 INFO imstat:::: Statistics --- 2026-08-04 07:31:30 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:31:30 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:31:30 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:31:30 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:31:30 INFO imstat:::: -- Median of the pixel values [median]: -1.86664e-05 Jy/beam 2026-08-04 07:31:30 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-08-04 07:31:30 INFO imstat:::: -- IQR [quartile]: 3.56255e-05 Jy/beam 2026-08-04 07:31:30 INFO imstat:::: -- First quartile [q1]: -3.45078e-05 Jy/beam 2026-08-04 07:31:30 INFO imstat:::: -- Third quartile [q3]: 1.11764e-06 Jy/beam 2026-08-04 07:31:30 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:31:30 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:31:30 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:31:30 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:31:30 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:31:30 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:31:30 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777640e-05 4.999996e+00 2026-08-04 07:31:30 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:31:29.828111 End time: 2026-08-04 07:31:29.854375 2026-08-04 07:31:30 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:31:30 INFO imstat::::casa ########################################## 2026-08-04 07:31:30 INFO phaseshift::::casa ########################################## 2026-08-04 07:31:30 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:31:30 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 40d06m00' ) 2026-08-04 07:31:30 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:31:30 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:31:30 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:31:30 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:31:30 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:31:30 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:31:30 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:31:30 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:31:30 INFO MSTransformManager::open Select data 2026-08-04 07:31:30 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:31:34 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:31:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 40d06m00' successfully parsed 2026-08-04 07:31:34 INFO phaseshift::::casa Shift phase center 2026-08-04 07:31:35 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:31:35 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:31:29.870955 End time: 2026-08-04 07:31:34.982476 2026-08-04 07:31:35 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:31:35 INFO phaseshift::::casa ########################################## 2026-08-04 07:31:35 INFO tclean::::casa ########################################## 2026-08-04 07:31:35 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:31:35 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:31:35 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:31:35 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:31:35 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:31:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:31:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:31:35 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:31:35 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:31:35 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:31:35 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:31:35 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:31:35 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:31:35 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:31:36 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:31:36 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022926 2026-08-04 07:31:36 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:31:36 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:31:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:31:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:31:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:31:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:31:38 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:31:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:31:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:31:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:31:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:31:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:31:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:31:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:31:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:31:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:31:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:31:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:31:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:31:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:31:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:31:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:31:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:31:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:31:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:31:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:31:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:31:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:31:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:31:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:31:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:31:43 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:31:43 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:31:43 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:31:44 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:31:44 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:31:45 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:31:35.035783 End time: 2026-08-04 07:31:45.493128 2026-08-04 07:31:45 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:31:45 INFO tclean::::casa ########################################## 2026-08-04 07:31:46 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:31:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:31:46 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:31:46 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:31:46 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:31:46 2026****** 2026-08-04 07:31:46 INFO ImageFitter::fit+ 2026-08-04 07:31:46 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:31:46 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:31:46 INFO ImageFitter::fit+ --- region: 2026-08-04 07:31:46 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:31:46 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:31:46 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:31:46 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:31:46 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:31:46 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:31:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:31:46 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:31:46 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:31:46 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:31:46 INFO imstat::::casa ########################################## 2026-08-04 07:31:46 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:31:46 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:31:46 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:31:46 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:31:46 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:31:46 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:31:46 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:31:46 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:31:46 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:31:46 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:31:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:31:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:31:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:31:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:31:46 INFO imstat:::: Values --- 2026-08-04 07:31:46 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:31:46 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:31:46 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:31:46 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-08-04 07:31:46 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:31:46 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:31:46 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:31:46 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:31:46 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:31:46 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:31:46 INFO imstat:::: Statistics --- 2026-08-04 07:31:46 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:31:46 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:31:46 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:31:46 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:31:46 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-08-04 07:31:46 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-08-04 07:31:46 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-08-04 07:31:46 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-08-04 07:31:46 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-08-04 07:31:46 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:31:46 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:31:46 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:31:46 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:31:46 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:31:46 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:31:46 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777580e-05 4.999996e+00 2026-08-04 07:31:46 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:31:45.566922 End time: 2026-08-04 07:31:45.593769 2026-08-04 07:31:46 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:31:46 INFO imstat::::casa ########################################## 2026-08-04 07:31:46 INFO phaseshift::::casa ########################################## 2026-08-04 07:31:46 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:31:46 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 02:40:24.0000' ) 2026-08-04 07:31:46 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:31:46 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:31:46 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:31:46 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:31:46 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:31:46 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:31:46 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:31:46 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:31:46 INFO MSTransformManager::open Select data 2026-08-04 07:31:46 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:31:48 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0000" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-08-04 07:31:48 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 02:40:24.0000' successfully parsed 2026-08-04 07:31:48 INFO phaseshift::::casa Shift phase center 2026-08-04 07:31:49 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:31:49 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:31:45.610389 End time: 2026-08-04 07:31:49.138828 2026-08-04 07:31:49 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:31:49 INFO phaseshift::::casa ########################################## 2026-08-04 07:31:49 INFO tclean::::casa ########################################## 2026-08-04 07:31:49 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:31:49 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:31:49 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:31:49 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:31:49 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:31:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:31:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:31:49 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:31:49 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:31:49 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:31:49 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:31:49 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:31:49 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:31:49 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:31:50 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:31:50 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023204 2026-08-04 07:31:50 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:31:50 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:31:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:31:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:31:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:31:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:31:54 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:31:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:31:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:31:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:31:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:31:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:31:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:31:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:31:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:31:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:31:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:31:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:31:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:31:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:31:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:31:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:31:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:31:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:31:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:31:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:31:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:31:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:31:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:31:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:32:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:32:00 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:32:00 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:32:00 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:32:00 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:32:00 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:32:01 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:31:49.186642 End time: 2026-08-04 07:32:00.912393 2026-08-04 07:32:01 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:32:01 INFO tclean::::casa ########################################## 2026-08-04 07:32:01 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:32:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:32:01 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:32:01 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:32:01 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:32:01 2026****** 2026-08-04 07:32:01 INFO ImageFitter::fit+ 2026-08-04 07:32:01 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:32:01 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:32:01 INFO ImageFitter::fit+ --- region: 2026-08-04 07:32:01 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:32:01 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:32:01 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:32:01 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:32:01 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:32:01 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:32:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:32:01 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:32:01 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:32:01 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:32:01 INFO imstat::::casa ########################################## 2026-08-04 07:32:01 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:32:01 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:32:01 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:32:01 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:32:01 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:32:01 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:32:01 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:32:01 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:32:01 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:32:01 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:32:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:32:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:32:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:32:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:32:01 INFO imstat:::: Values --- 2026-08-04 07:32:01 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:32:01 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:32:01 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:32:01 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-08-04 07:32:01 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:32:01 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:32:01 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:32:01 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:32:01 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:32:01 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:32:01 INFO imstat:::: Statistics --- 2026-08-04 07:32:01 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:32:01 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:32:01 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:32:01 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:32:01 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-08-04 07:32:01 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-08-04 07:32:01 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-08-04 07:32:01 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-08-04 07:32:01 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-08-04 07:32:01 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:32:01 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:32:01 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:32:01 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:32:01 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:32:01 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:32:01 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777580e-05 4.999996e+00 2026-08-04 07:32:01 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:32:00.984146 End time: 2026-08-04 07:32:01.025136 2026-08-04 07:32:01 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:32:01 INFO imstat::::casa ########################################## 2026-08-04 07:32:01 INFO phaseshift::::casa ########################################## 2026-08-04 07:32:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:32:01 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 40.100000000deg' ) 2026-08-04 07:32:01 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:32:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:32:01 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:32:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:32:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:32:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:32:01 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:32:01 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:32:01 INFO MSTransformManager::open Select data 2026-08-04 07:32:01 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:32:05 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:32:05 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 40.100000000deg' successfully parsed 2026-08-04 07:32:05 INFO phaseshift::::casa Shift phase center 2026-08-04 07:32:06 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:32:06 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:32:01.051272 End time: 2026-08-04 07:32:05.653381 2026-08-04 07:32:06 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:32:06 INFO phaseshift::::casa ########################################## 2026-08-04 07:32:06 INFO tclean::::casa ########################################## 2026-08-04 07:32:06 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:32:06 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:32:06 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:32:06 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:32:06 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:32:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:32:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:32:06 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:32:06 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:32:06 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:32:06 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:32:06 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:32:06 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:32:06 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:32:07 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:32:07 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025308 2026-08-04 07:32:07 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:32:07 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:32:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:32:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:32:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:32:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:32:10 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:32:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:32:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:32:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:32:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:32:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:32:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:32:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:32:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:32:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:32:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:32:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:32:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:32:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:32:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:32:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:32:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:32:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:32:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:32:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:32:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:32:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:32:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:32:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:32:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:32:18 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:32:18 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:32:18 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:32:18 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:32:19 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:32:20 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:32:05.703750 End time: 2026-08-04 07:32:20.083188 2026-08-04 07:32:20 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:32:20 INFO tclean::::casa ########################################## 2026-08-04 07:32:20 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:32:20 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:32:20 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:32:20 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:32:20 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:32:20 2026****** 2026-08-04 07:32:20 INFO ImageFitter::fit+ 2026-08-04 07:32:20 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:32:20 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:32:20 INFO ImageFitter::fit+ --- region: 2026-08-04 07:32:20 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:32:20 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:32:20 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:32:20 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:32:20 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:32:20 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:32:20 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:32:20 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:32:20 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:32:20 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:32:20 INFO imstat::::casa ########################################## 2026-08-04 07:32:20 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:32:20 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:32:20 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:32:20 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:32:20 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:32:20 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:32:20 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:32:20 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:32:20 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:32:20 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:32:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:32:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:32:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:32:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:32:20 INFO imstat:::: Values --- 2026-08-04 07:32:20 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:32:20 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:32:20 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:32:20 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-08-04 07:32:20 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:32:20 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:32:20 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:32:20 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:32:20 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:32:20 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:32:20 INFO imstat:::: Statistics --- 2026-08-04 07:32:20 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:32:20 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:32:20 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:32:20 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:32:20 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-08-04 07:32:20 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-08-04 07:32:20 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-08-04 07:32:20 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-08-04 07:32:20 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-08-04 07:32:20 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:32:20 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:32:20 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:32:20 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:32:20 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:32:20 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:32:20 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777580e-05 4.999996e+00 2026-08-04 07:32:20 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:32:20.160237 End time: 2026-08-04 07:32:20.187157 2026-08-04 07:32:20 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:32:20 INFO imstat::::casa ########################################## 2026-08-04 07:32:20 INFO phaseshift::::casa ########################################## 2026-08-04 07:32:20 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:32:20 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 0.699877030rad' ) 2026-08-04 07:32:20 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:32:20 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:32:20 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:32:20 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:32:20 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:32:20 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:32:20 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:32:20 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:32:20 INFO MSTransformManager::open Select data 2026-08-04 07:32:20 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:32:24 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:32:24 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 0.699877030rad' successfully parsed 2026-08-04 07:32:24 INFO phaseshift::::casa Shift phase center 2026-08-04 07:32:25 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:32:25 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:32:20.204201 End time: 2026-08-04 07:32:25.429627 2026-08-04 07:32:25 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:32:25 INFO phaseshift::::casa ########################################## 2026-08-04 07:32:25 INFO tclean::::casa ########################################## 2026-08-04 07:32:25 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:32:25 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:32:25 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:32:26 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:32:26 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:32:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:32:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:32:26 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:32:26 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:32:26 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:32:26 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:32:26 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:32:26 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:32:26 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:32:28 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:32:28 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025353 2026-08-04 07:32:28 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:32:28 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:32:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:32:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:32:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:32:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:32:30 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:32:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:32:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:32:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:32:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:32:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:32:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:32:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:32:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:32:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:32:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:32:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:32:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:32:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:32:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:32:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:32:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:32:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:32:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:32:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:32:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:32:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:32:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:32:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:32:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:32:41 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:32:41 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:32:41 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:32:42 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:32:42 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:32:44 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:32:25.489800 End time: 2026-08-04 07:32:43.846173 2026-08-04 07:32:44 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:32:44 INFO tclean::::casa ########################################## 2026-08-04 07:32:44 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:32:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:32:44 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:32:44 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:32:44 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:32:44 2026****** 2026-08-04 07:32:44 INFO ImageFitter::fit+ 2026-08-04 07:32:44 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:32:44 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:32:44 INFO ImageFitter::fit+ --- region: 2026-08-04 07:32:44 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:32:44 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:32:44 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:32:44 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:32:44 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:32:44 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:32:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:32:44 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:32:44 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126487 Jy 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:32:44 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:32:44 INFO imstat::::casa ########################################## 2026-08-04 07:32:44 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:32:44 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:32:44 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:32:44 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:32:44 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:32:44 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:32:44 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:32:44 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:32:44 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:32:44 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:32:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:32:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:32:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:32:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:32:44 INFO imstat:::: Values --- 2026-08-04 07:32:44 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:32:44 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:32:44 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:32:44 INFO imstat:::: -- minimum value [min]: -7.77738e-05 Jy/beam 2026-08-04 07:32:44 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:32:44 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:32:44 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:32:44 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:32:44 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:32:44 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:32:44 INFO imstat:::: Statistics --- 2026-08-04 07:32:44 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:32:44 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:32:44 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:32:44 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:32:44 INFO imstat:::: -- Median of the pixel values [median]: -1.86662e-05 Jy/beam 2026-08-04 07:32:44 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73577e-05 Jy/beam 2026-08-04 07:32:44 INFO imstat:::: -- IQR [quartile]: 3.56242e-05 Jy/beam 2026-08-04 07:32:44 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-08-04 07:32:44 INFO imstat:::: -- Third quartile [q3]: 1.11673e-06 Jy/beam 2026-08-04 07:32:44 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:32:44 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:32:44 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:32:44 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:32:44 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:32:44 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:32:44 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777377e-05 4.999996e+00 2026-08-04 07:32:44 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:32:43.929305 End time: 2026-08-04 07:32:43.956927 2026-08-04 07:32:44 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:32:44 INFO imstat::::casa ########################################## 2026-08-04 07:32:44 INFO phaseshift::::casa ########################################## 2026-08-04 07:32:44 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:32:44 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 40d06m00' ) 2026-08-04 07:32:44 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:32:44 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:32:44 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:32:44 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:32:44 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:32:44 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:32:44 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:32:44 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:32:44 INFO MSTransformManager::open Select data 2026-08-04 07:32:44 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:32:48 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:32:48 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 40d06m00' successfully parsed 2026-08-04 07:32:48 INFO phaseshift::::casa Shift phase center 2026-08-04 07:32:51 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:32:51 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:32:43.974530 End time: 2026-08-04 07:32:50.992269 2026-08-04 07:32:51 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:32:51 INFO phaseshift::::casa ########################################## 2026-08-04 07:32:51 INFO tclean::::casa ########################################## 2026-08-04 07:32:51 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:32:51 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:32:51 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:32:51 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:32:51 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:32:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:32:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:32:51 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:32:51 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:32:51 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:32:51 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:32:51 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:32:51 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:32:51 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:32:53 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:32:53 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027593 2026-08-04 07:32:53 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:32:53 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:32:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:32:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:32:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:32:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:32:55 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:32:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:32:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:32:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:32:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:32:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:32:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:32:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:32:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:32:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:32:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:32:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:32:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:32:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:32:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:32:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:32:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:32:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:32:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:32:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:32:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:32:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:32:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:32:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:33:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:33:00 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:33:00 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:33:00 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:33:00 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:33:00 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:33:02 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:32:51.053402 End time: 2026-08-04 07:33:01.512535 2026-08-04 07:33:02 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:33:02 INFO tclean::::casa ########################################## 2026-08-04 07:33:02 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:33:02 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:33:02 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:33:02 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:33:02 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:33:02 2026****** 2026-08-04 07:33:02 INFO ImageFitter::fit+ 2026-08-04 07:33:02 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:33:02 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:33:02 INFO ImageFitter::fit+ --- region: 2026-08-04 07:33:02 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:33:02 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:33:02 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:33:02 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:33:02 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:33:02 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:33:02 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:33:02 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:33:02 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:33:02 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:33:02 INFO imstat::::casa ########################################## 2026-08-04 07:33:02 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:33:02 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:33:02 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:33:02 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:33:02 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:33:02 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:33:02 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:33:02 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:33:02 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:33:02 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:33:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:33:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:33:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:33:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:33:02 INFO imstat:::: Values --- 2026-08-04 07:33:02 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:33:02 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:33:02 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:33:02 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-08-04 07:33:02 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:33:02 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-08-04 07:33:02 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:33:02 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-08-04 07:33:02 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:33:02 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:33:02 INFO imstat:::: Statistics --- 2026-08-04 07:33:02 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:33:02 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:33:02 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:33:02 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:33:02 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-08-04 07:33:02 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-08-04 07:33:02 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-08-04 07:33:02 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-08-04 07:33:02 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-08-04 07:33:02 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:33:02 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:33:02 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:33:02 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:33:02 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:33:02 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:33:02 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778010e-05 4.999996e+00 2026-08-04 07:33:02 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:33:01.587576 End time: 2026-08-04 07:33:01.623356 2026-08-04 07:33:02 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:33:02 INFO imstat::::casa ########################################## 2026-08-04 07:33:02 INFO phaseshift::::casa ########################################## 2026-08-04 07:33:02 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:33:02 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 02:40:24.0000' ) 2026-08-04 07:33:02 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:33:02 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:33:02 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:33:02 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:33:02 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:33:02 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:33:02 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:33:02 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:33:02 INFO MSTransformManager::open Select data 2026-08-04 07:33:02 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:33:04 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0000" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-08-04 07:33:04 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 02:40:24.0000' successfully parsed 2026-08-04 07:33:04 INFO phaseshift::::casa Shift phase center 2026-08-04 07:33:05 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:33:05 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:33:01.640611 End time: 2026-08-04 07:33:04.931598 2026-08-04 07:33:05 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:33:05 INFO phaseshift::::casa ########################################## 2026-08-04 07:33:05 INFO tclean::::casa ########################################## 2026-08-04 07:33:05 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:33:05 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:33:05 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:33:05 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:33:05 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:33:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:33:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:33:05 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:33:05 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:33:05 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:33:05 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:33:05 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:33:05 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:33:05 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:33:06 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:33:06 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02368 2026-08-04 07:33:06 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:33:06 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:33:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:33:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:33:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:33:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:33:08 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:33:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:33:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:33:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:33:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:33:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:33:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:33:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:33:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:33:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:33:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:33:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:33:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:33:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:33:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:33:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:33:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:33:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:33:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:33:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:33:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:33:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:33:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:33:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:33:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:33:14 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:33:14 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:33:14 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:33:14 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:33:15 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:33:16 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:33:04.988283 End time: 2026-08-04 07:33:15.958409 2026-08-04 07:33:16 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:33:16 INFO tclean::::casa ########################################## 2026-08-04 07:33:16 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:33:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:33:16 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:33:16 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:33:16 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:33:16 2026****** 2026-08-04 07:33:16 INFO ImageFitter::fit+ 2026-08-04 07:33:16 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:33:16 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:33:16 INFO ImageFitter::fit+ --- region: 2026-08-04 07:33:16 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:33:16 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:33:16 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:33:16 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:33:16 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:33:16 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:33:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:33:16 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:33:16 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:33:16 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:33:16 INFO imstat::::casa ########################################## 2026-08-04 07:33:16 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:33:16 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:33:16 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:33:16 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:33:16 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:33:16 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:33:16 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:33:16 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:33:16 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:33:16 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:33:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:33:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:33:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:33:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:33:16 INFO imstat:::: Values --- 2026-08-04 07:33:16 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:33:16 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:33:16 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:33:16 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-08-04 07:33:16 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:33:16 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-08-04 07:33:16 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:33:16 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-08-04 07:33:16 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:33:16 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:33:16 INFO imstat:::: Statistics --- 2026-08-04 07:33:16 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:33:16 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:33:16 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:33:16 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:33:16 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-08-04 07:33:16 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-08-04 07:33:16 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-08-04 07:33:16 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-08-04 07:33:16 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-08-04 07:33:16 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:33:16 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:33:16 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:33:16 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:33:16 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:33:16 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:33:16 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778010e-05 4.999996e+00 2026-08-04 07:33:16 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:33:16.037347 End time: 2026-08-04 07:33:16.069859 2026-08-04 07:33:16 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:33:16 INFO imstat::::casa ########################################## 2026-08-04 07:33:16 INFO phaseshift::::casa ########################################## 2026-08-04 07:33:16 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:33:16 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 40.100000000deg' ) 2026-08-04 07:33:16 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:33:16 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:33:16 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:33:16 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:33:16 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:33:16 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:33:16 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:33:16 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:33:16 INFO MSTransformManager::open Select data 2026-08-04 07:33:16 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:33:19 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:33:19 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 40.100000000deg' successfully parsed 2026-08-04 07:33:19 INFO phaseshift::::casa Shift phase center 2026-08-04 07:33:20 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:33:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:33:16.085957 End time: 2026-08-04 07:33:19.728403 2026-08-04 07:33:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:33:20 INFO phaseshift::::casa ########################################## 2026-08-04 07:33:20 INFO tclean::::casa ########################################## 2026-08-04 07:33:20 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:33:20 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:33:20 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:33:20 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:33:20 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:33:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:33:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:33:20 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:33:20 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:33:20 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:33:20 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:33:20 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:33:20 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:33:20 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:33:23 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:33:23 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026032 2026-08-04 07:33:23 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:33:23 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:33:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:33:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:33:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:33:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:33:25 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:33:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:33:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:33:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:33:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:33:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:33:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:33:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:33:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:33:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:33:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:33:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:33:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:33:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:33:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:33:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:33:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:33:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:33:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:33:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:33:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:33:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:33:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:33:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:33:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:33:32 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:33:32 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:33:32 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:33:32 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:33:33 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:33:34 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:33:19.785289 End time: 2026-08-04 07:33:34.233310 2026-08-04 07:33:34 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:33:34 INFO tclean::::casa ########################################## 2026-08-04 07:33:34 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:33:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:33:34 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:33:34 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:33:34 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:33:34 2026****** 2026-08-04 07:33:34 INFO ImageFitter::fit+ 2026-08-04 07:33:34 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:33:34 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:33:34 INFO ImageFitter::fit+ --- region: 2026-08-04 07:33:34 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:33:34 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:33:34 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:33:34 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:33:34 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:33:34 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:33:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:33:34 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:33:34 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:33:34 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:33:34 INFO imstat::::casa ########################################## 2026-08-04 07:33:34 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:33:34 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:33:34 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:33:34 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:33:34 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:33:34 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:33:34 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:33:34 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:33:34 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:33:34 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:33:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:33:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:33:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:33:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:33:34 INFO imstat:::: Values --- 2026-08-04 07:33:34 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:33:34 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:33:34 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:33:34 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-08-04 07:33:34 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:33:34 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-08-04 07:33:34 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:33:34 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-08-04 07:33:34 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:33:34 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:33:34 INFO imstat:::: Statistics --- 2026-08-04 07:33:34 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:33:34 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:33:34 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:33:34 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:33:34 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-08-04 07:33:34 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-08-04 07:33:34 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-08-04 07:33:34 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-08-04 07:33:34 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-08-04 07:33:34 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:33:34 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:33:34 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:33:34 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:33:34 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:33:34 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:33:34 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778010e-05 4.999996e+00 2026-08-04 07:33:34 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:33:34.301392 End time: 2026-08-04 07:33:34.326517 2026-08-04 07:33:34 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:33:34 INFO imstat::::casa ########################################## 2026-08-04 07:33:34 INFO phaseshift::::casa ########################################## 2026-08-04 07:33:34 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:33:34 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 0.699877030rad' ) 2026-08-04 07:33:34 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:33:34 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:33:34 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:33:34 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:33:34 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:33:34 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:33:34 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:33:34 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:33:34 INFO MSTransformManager::open Select data 2026-08-04 07:33:34 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:33:38 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:33:38 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 0.699877030rad' successfully parsed 2026-08-04 07:33:38 INFO phaseshift::::casa Shift phase center 2026-08-04 07:33:39 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:33:39 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:33:34.342829 End time: 2026-08-04 07:33:39.063824 2026-08-04 07:33:39 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:33:39 INFO phaseshift::::casa ########################################## 2026-08-04 07:33:39 INFO tclean::::casa ########################################## 2026-08-04 07:33:39 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:33:39 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:33:39 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:33:39 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:33:39 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:33:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:33:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:33:39 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:33:39 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:33:39 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:33:39 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:33:39 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:33:39 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:33:39 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:33:41 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:33:41 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025112 2026-08-04 07:33:41 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:33:41 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:33:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:33:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:33:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:33:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:33:45 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:33:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:33:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:33:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:33:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:33:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:33:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:33:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:33:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:33:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:33:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:33:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:33:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:33:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:33:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:33:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:33:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:33:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:33:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:33:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:33:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:33:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:33:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:33:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:33:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:33:57 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:33:57 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:33:57 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:33:58 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:33:58 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:34:00 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:33:39.114231 End time: 2026-08-04 07:34:00.472848 2026-08-04 07:34:00 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:34:00 INFO tclean::::casa ########################################## 2026-08-04 07:34:00 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:34:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:34:00 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:34:00 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:34:01 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:34:01 2026****** 2026-08-04 07:34:01 INFO ImageFitter::fit+ 2026-08-04 07:34:01 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:34:01 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:34:01 INFO ImageFitter::fit+ --- region: 2026-08-04 07:34:01 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:34:01 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:34:01 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:34:01 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:34:01 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:34:01 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:34:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:34:01 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:34:01 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:34:01 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:34:01 INFO imstat::::casa ########################################## 2026-08-04 07:34:01 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:34:01 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:34:01 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:34:01 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:34:01 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:34:01 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:34:01 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:34:01 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:34:01 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:34:01 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:34:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:34:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:34:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:34:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:34:01 INFO imstat:::: Values --- 2026-08-04 07:34:01 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:34:01 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:34:01 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:34:01 INFO imstat:::: -- minimum value [min]: -7.77793e-05 Jy/beam 2026-08-04 07:34:01 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:34:01 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-08-04 07:34:01 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:34:01 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-08-04 07:34:01 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:34:01 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:34:01 INFO imstat:::: Statistics --- 2026-08-04 07:34:01 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:34:01 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:34:01 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:34:01 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:34:01 INFO imstat:::: -- Median of the pixel values [median]: -1.86714e-05 Jy/beam 2026-08-04 07:34:01 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73592e-05 Jy/beam 2026-08-04 07:34:01 INFO imstat:::: -- IQR [quartile]: 3.55982e-05 Jy/beam 2026-08-04 07:34:01 INFO imstat:::: -- First quartile [q1]: -3.45035e-05 Jy/beam 2026-08-04 07:34:01 INFO imstat:::: -- Third quartile [q3]: 1.09469e-06 Jy/beam 2026-08-04 07:34:01 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:34:01 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:34:01 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:34:01 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:34:01 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:34:01 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:34:01 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777928e-05 4.999996e+00 2026-08-04 07:34:01 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:34:00.546447 End time: 2026-08-04 07:34:00.572838 2026-08-04 07:34:01 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:34:01 INFO imstat::::casa ########################################## 2026-08-04 07:34:01 INFO phaseshift::::casa ########################################## 2026-08-04 07:34:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:34:01 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 40d06m0.0019' ) 2026-08-04 07:34:01 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:34:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:34:01 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:34:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:34:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:34:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:34:01 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:34:01 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:34:01 INFO MSTransformManager::open Select data 2026-08-04 07:34:01 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:34:08 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:34:08 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 40d06m0.0019' successfully parsed 2026-08-04 07:34:08 INFO phaseshift::::casa Shift phase center 2026-08-04 07:34:09 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:34:09 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:34:00.591715 End time: 2026-08-04 07:34:08.956608 2026-08-04 07:34:09 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:34:09 INFO phaseshift::::casa ########################################## 2026-08-04 07:34:09 INFO tclean::::casa ########################################## 2026-08-04 07:34:09 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:34:09 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:34:09 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:34:09 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:34:09 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:34:09 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:34:09 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:34:09 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:34:09 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:34:09 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:34:09 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:34:09 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:34:09 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:34:09 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:34:10 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:34:10 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025172 2026-08-04 07:34:10 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:34:10 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:34:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:34:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:34:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:34:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:34:13 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:34:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:34:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:34:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:34:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:34:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:34:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:34:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:34:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:34:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:34:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:34:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:34:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:34:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:34:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:34:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:34:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:34:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:34:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:34:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:34:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:34:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:34:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:34:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:34:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:34:23 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:34:23 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:34:23 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:34:24 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:34:24 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:34:26 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:34:09.014449 End time: 2026-08-04 07:34:25.773797 2026-08-04 07:34:26 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:34:26 INFO tclean::::casa ########################################## 2026-08-04 07:34:26 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:34:26 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:34:26 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:34:26 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:34:26 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:34:26 2026****** 2026-08-04 07:34:26 INFO ImageFitter::fit+ 2026-08-04 07:34:26 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:34:26 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:34:26 INFO ImageFitter::fit+ --- region: 2026-08-04 07:34:26 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:34:26 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:34:26 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:34:26 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:34:26 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:34:26 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:34:26 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:34:26 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:34:26 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:34:26 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:34:26 INFO imstat::::casa ########################################## 2026-08-04 07:34:26 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:34:26 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:34:26 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:34:26 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:34:26 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:34:26 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:34:26 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:34:26 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:34:26 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:34:26 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:34:26 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:34:26 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:34:26 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:34:26 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:34:26 INFO imstat:::: Values --- 2026-08-04 07:34:26 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:34:26 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:34:26 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:34:26 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-08-04 07:34:26 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:34:26 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:34:26 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:34:26 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-08-04 07:34:26 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:34:26 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:34:26 INFO imstat:::: Statistics --- 2026-08-04 07:34:26 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:34:26 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:34:26 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:34:26 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:34:26 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-08-04 07:34:26 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-08-04 07:34:26 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-08-04 07:34:26 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-08-04 07:34:26 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-08-04 07:34:26 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:34:26 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:34:26 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:34:26 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:34:26 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:34:26 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:34:26 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779541e-05 4.999996e+00 2026-08-04 07:34:26 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:34:25.854112 End time: 2026-08-04 07:34:25.899675 2026-08-04 07:34:26 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:34:26 INFO imstat::::casa ########################################## 2026-08-04 07:34:26 INFO phaseshift::::casa ########################################## 2026-08-04 07:34:26 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:34:26 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 02:40:24.0001' ) 2026-08-04 07:34:26 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:34:26 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:34:26 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:34:26 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:34:26 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:34:26 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:34:26 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:34:26 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:34:26 INFO MSTransformManager::open Select data 2026-08-04 07:34:26 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:34:31 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-08-04 07:34:31 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 02:40:24.0001' successfully parsed 2026-08-04 07:34:31 INFO phaseshift::::casa Shift phase center 2026-08-04 07:34:32 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:34:32 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:34:25.927707 End time: 2026-08-04 07:34:31.978542 2026-08-04 07:34:32 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:34:32 INFO phaseshift::::casa ########################################## 2026-08-04 07:34:32 INFO tclean::::casa ########################################## 2026-08-04 07:34:32 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:34:32 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:34:32 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:34:32 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:34:32 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:34:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:34:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:34:32 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:34:32 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:34:32 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:34:32 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:34:32 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:34:32 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:34:32 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:34:35 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:34:35 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027905 2026-08-04 07:34:35 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:34:35 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:34:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:34:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:34:39 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:34:39 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:34:39 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:34:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:34:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:34:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:34:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:34:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:34:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:34:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:34:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:34:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:34:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:34:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:34:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:34:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:34:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:34:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:34:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:34:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:34:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:34:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:34:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:34:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:34:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:34:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:34:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:34:46 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:34:46 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:34:46 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:34:47 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:34:48 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:34:50 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:34:32.028949 End time: 2026-08-04 07:34:49.559263 2026-08-04 07:34:50 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:34:50 INFO tclean::::casa ########################################## 2026-08-04 07:34:50 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:34:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:34:50 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:34:50 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:34:50 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:34:50 2026****** 2026-08-04 07:34:50 INFO ImageFitter::fit+ 2026-08-04 07:34:50 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:34:50 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:34:50 INFO ImageFitter::fit+ --- region: 2026-08-04 07:34:50 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:34:50 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:34:50 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:34:50 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:34:50 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:34:50 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:34:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:34:50 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.996 to 19:53:46.513, +40.06.39.996) 2026-08-04 07:34:50 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:34:50 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:34:50 INFO imstat::::casa ########################################## 2026-08-04 07:34:50 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:34:50 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:34:50 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:34:50 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:34:50 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:34:50 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:34:50 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:34:50 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:34:50 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:34:50 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:34:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:34:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:34:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:34:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:34:50 INFO imstat:::: Values --- 2026-08-04 07:34:50 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:34:50 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:34:50 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:34:50 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-08-04 07:34:50 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:34:50 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-08-04 07:34:50 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:34:50 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-08-04 07:34:50 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:34:50 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:34:50 INFO imstat:::: Statistics --- 2026-08-04 07:34:50 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:34:50 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:34:50 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:34:50 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:34:50 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-08-04 07:34:50 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-08-04 07:34:50 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-08-04 07:34:50 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-08-04 07:34:50 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-08-04 07:34:50 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:34:50 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:34:50 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:34:50 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:34:50 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:34:50 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:34:50 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.780943e-05 4.999996e+00 2026-08-04 07:34:50 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:34:49.636517 End time: 2026-08-04 07:34:49.678307 2026-08-04 07:34:50 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:34:50 INFO imstat::::casa ########################################## 2026-08-04 07:34:50 INFO phaseshift::::casa ########################################## 2026-08-04 07:34:50 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:34:50 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 40.100000528deg' ) 2026-08-04 07:34:50 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:34:50 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:34:50 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:34:50 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:34:50 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:34:50 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:34:50 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:34:50 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:34:50 INFO MSTransformManager::open Select data 2026-08-04 07:34:50 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:34:52 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:34:52 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 40.100000528deg' successfully parsed 2026-08-04 07:34:52 INFO phaseshift::::casa Shift phase center 2026-08-04 07:34:53 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:34:53 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:34:49.700624 End time: 2026-08-04 07:34:52.968387 2026-08-04 07:34:53 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:34:53 INFO phaseshift::::casa ########################################## 2026-08-04 07:34:53 INFO tclean::::casa ########################################## 2026-08-04 07:34:53 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:34:53 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:34:53 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:34:53 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:34:53 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:34:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:34:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:34:53 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:34:53 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:34:53 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:34:53 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:34:53 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:34:53 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:34:53 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:34:54 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:34:54 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02793 2026-08-04 07:34:54 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:34:54 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:34:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:34:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:34:56 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:34:56 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:34:56 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:34:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:34:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:34:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:34:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:34:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:34:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:34:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:34:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:34:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:34:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:34:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:34:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:34:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:34:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:34:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:34:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:34:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:35:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:35:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:35:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:35:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:35:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:35:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:35:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:35:01 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:35:01 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:35:01 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:35:01 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:35:01 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:35:03 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:34:53.027800 End time: 2026-08-04 07:35:03.112663 2026-08-04 07:35:03 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:35:03 INFO tclean::::casa ########################################## 2026-08-04 07:35:03 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:35:03 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:35:03 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:35:03 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:35:03 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:35:03 2026****** 2026-08-04 07:35:03 INFO ImageFitter::fit+ 2026-08-04 07:35:03 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:35:03 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:35:03 INFO ImageFitter::fit+ --- region: 2026-08-04 07:35:03 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:35:03 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:35:03 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:35:03 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:35:03 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:35:03 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:35:03 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:35:03 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:35:03 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:35:03 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:35:03 INFO imstat::::casa ########################################## 2026-08-04 07:35:03 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:35:03 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:35:03 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:35:03 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:35:03 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:35:03 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:35:03 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:35:03 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:35:03 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:35:03 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:35:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:35:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:35:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:35:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:35:03 INFO imstat:::: Values --- 2026-08-04 07:35:03 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:35:03 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:35:03 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:35:03 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-08-04 07:35:03 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:35:03 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:35:03 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:35:03 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-08-04 07:35:03 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:35:03 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:35:03 INFO imstat:::: Statistics --- 2026-08-04 07:35:03 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:35:03 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:35:03 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:35:03 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:35:03 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-08-04 07:35:03 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-08-04 07:35:03 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-08-04 07:35:03 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-08-04 07:35:03 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-08-04 07:35:03 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:35:03 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:35:03 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:35:03 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:35:03 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:35:03 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:35:03 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779537e-05 4.999996e+00 2026-08-04 07:35:03 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:35:03.188999 End time: 2026-08-04 07:35:03.231723 2026-08-04 07:35:03 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:35:03 INFO imstat::::casa ########################################## 2026-08-04 07:35:03 INFO phaseshift::::casa ########################################## 2026-08-04 07:35:03 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:35:03 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 0.699877039rad' ) 2026-08-04 07:35:03 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:35:03 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:35:03 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:35:03 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:35:03 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:35:03 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:35:03 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:35:03 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:35:03 INFO MSTransformManager::open Select data 2026-08-04 07:35:03 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:35:07 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:35:07 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 0.699877039rad' successfully parsed 2026-08-04 07:35:07 INFO phaseshift::::casa Shift phase center 2026-08-04 07:35:07 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:35:07 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:35:03.269162 End time: 2026-08-04 07:35:07.259376 2026-08-04 07:35:07 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:35:07 INFO phaseshift::::casa ########################################## 2026-08-04 07:35:07 INFO tclean::::casa ########################################## 2026-08-04 07:35:07 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:35:07 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:35:07 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:35:07 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:35:07 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:35:07 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:35:07 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:35:07 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:35:07 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:35:07 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:35:07 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:35:07 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:35:07 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:35:07 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:35:08 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:35:08 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020144 2026-08-04 07:35:08 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:35:08 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:35:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:35:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:35:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:35:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:35:10 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:35:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:35:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:35:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:35:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:35:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:35:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:35:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:35:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:35:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:35:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:35:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:35:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:35:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:35:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:35:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:35:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:35:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:35:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:35:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:35:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:35:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:35:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:35:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:35:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:35:17 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:35:17 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:35:17 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:35:18 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:35:19 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:35:21 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:35:07.308422 End time: 2026-08-04 07:35:21.210620 2026-08-04 07:35:21 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:35:21 INFO tclean::::casa ########################################## 2026-08-04 07:35:21 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:35:21 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:35:21 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:35:21 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:35:21 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:35:21 2026****** 2026-08-04 07:35:21 INFO ImageFitter::fit+ 2026-08-04 07:35:21 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:35:21 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:35:21 INFO ImageFitter::fit+ --- region: 2026-08-04 07:35:21 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:35:21 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:35:21 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:35:21 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:35:21 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:35:21 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:35:21 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:35:21 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:35:21 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:35:21 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:35:21 INFO imstat::::casa ########################################## 2026-08-04 07:35:21 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:35:21 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:35:21 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:35:21 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:35:21 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:35:21 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:35:21 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:35:21 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:35:21 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:35:21 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:35:21 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:35:21 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:35:21 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:35:21 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:35:21 INFO imstat:::: Values --- 2026-08-04 07:35:21 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:35:21 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:35:21 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:35:21 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-08-04 07:35:21 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:35:21 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:35:21 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:35:21 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-08-04 07:35:21 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:35:21 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:35:21 INFO imstat:::: Statistics --- 2026-08-04 07:35:21 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:35:21 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:35:21 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:35:21 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:35:21 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-08-04 07:35:21 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-08-04 07:35:21 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-08-04 07:35:21 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-08-04 07:35:21 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-08-04 07:35:21 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:35:21 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:35:21 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:35:21 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:35:21 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:35:21 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:35:21 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.778665e-05 4.999996e+00 2026-08-04 07:35:21 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:35:21.280330 End time: 2026-08-04 07:35:21.306138 2026-08-04 07:35:21 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:35:21 INFO imstat::::casa ########################################## 2026-08-04 07:35:21 INFO phaseshift::::casa ########################################## 2026-08-04 07:35:21 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:35:21 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 40d06m0.0019' ) 2026-08-04 07:35:21 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:35:21 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:35:21 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:35:21 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:35:21 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:35:21 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:35:21 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:35:21 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:35:21 INFO MSTransformManager::open Select data 2026-08-04 07:35:21 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:35:25 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:35:25 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 40d06m0.0019' successfully parsed 2026-08-04 07:35:25 INFO phaseshift::::casa Shift phase center 2026-08-04 07:35:26 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:35:26 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:35:21.323654 End time: 2026-08-04 07:35:25.805824 2026-08-04 07:35:26 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:35:26 INFO phaseshift::::casa ########################################## 2026-08-04 07:35:26 INFO tclean::::casa ########################################## 2026-08-04 07:35:26 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:35:26 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:35:26 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:35:26 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:35:26 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:35:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:35:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:35:26 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:35:26 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:35:26 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:35:26 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:35:26 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:35:26 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:35:26 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:35:27 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:35:27 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025467 2026-08-04 07:35:27 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:35:27 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:35:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:35:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:35:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:35:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:35:30 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:35:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:35:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:35:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:35:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:35:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:35:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:35:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:35:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:35:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:35:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:35:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:35:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:35:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:35:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:35:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:35:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:35:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:35:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:35:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:35:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:35:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:35:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:35:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:35:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:35:34 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:35:34 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:35:34 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:35:34 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:35:34 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:35:37 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:35:25.862543 End time: 2026-08-04 07:35:37.395905 2026-08-04 07:35:37 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:35:37 INFO tclean::::casa ########################################## 2026-08-04 07:35:37 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:35:37 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:35:37 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:35:37 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:35:37 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:35:37 2026****** 2026-08-04 07:35:37 INFO ImageFitter::fit+ 2026-08-04 07:35:37 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:35:37 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:35:37 INFO ImageFitter::fit+ --- region: 2026-08-04 07:35:37 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:35:37 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:35:37 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:35:37 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:35:37 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:35:37 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:35:37 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:35:37 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:35:37 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:35:37 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:35:37 INFO imstat::::casa ########################################## 2026-08-04 07:35:37 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:35:37 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:35:37 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:35:37 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:35:37 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:35:37 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:35:37 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:35:37 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:35:37 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:35:37 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:35:37 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:35:37 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:35:37 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:35:37 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:35:37 INFO imstat:::: Values --- 2026-08-04 07:35:37 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:35:37 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:35:37 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:35:37 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-08-04 07:35:37 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:35:37 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:35:37 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:35:37 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-08-04 07:35:37 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:35:37 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:35:37 INFO imstat:::: Statistics --- 2026-08-04 07:35:37 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:35:37 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:35:37 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:35:37 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:35:37 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-08-04 07:35:37 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-08-04 07:35:37 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-08-04 07:35:37 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-08-04 07:35:37 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-08-04 07:35:37 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:35:37 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:35:37 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:35:37 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:35:37 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:35:37 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:35:37 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779541e-05 4.999996e+00 2026-08-04 07:35:37 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:35:37.469080 End time: 2026-08-04 07:35:37.496095 2026-08-04 07:35:37 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:35:37 INFO imstat::::casa ########################################## 2026-08-04 07:35:38 INFO phaseshift::::casa ########################################## 2026-08-04 07:35:38 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:35:38 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 02:40:24.0001' ) 2026-08-04 07:35:38 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:35:38 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:35:38 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:35:38 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:35:38 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:35:38 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:35:38 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:35:38 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:35:38 INFO MSTransformManager::open Select data 2026-08-04 07:35:38 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:35:39 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-08-04 07:35:39 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 02:40:24.0001' successfully parsed 2026-08-04 07:35:39 INFO phaseshift::::casa Shift phase center 2026-08-04 07:35:40 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:35:40 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:35:37.512862 End time: 2026-08-04 07:35:39.649868 2026-08-04 07:35:40 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:35:40 INFO phaseshift::::casa ########################################## 2026-08-04 07:35:40 INFO tclean::::casa ########################################## 2026-08-04 07:35:40 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:35:40 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:35:40 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:35:40 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:35:40 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:35:40 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:35:40 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:35:40 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:35:40 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:35:40 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:35:40 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:35:40 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:35:40 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:35:40 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:35:41 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:35:41 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02406 2026-08-04 07:35:41 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:35:41 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:35:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:35:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:35:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:35:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:35:42 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:35:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:35:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:35:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:35:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:35:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:35:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:35:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:35:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:35:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:35:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:35:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:35:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:35:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:35:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:35:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:35:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:35:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:35:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:35:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:35:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:35:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:35:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:35:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:35:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:35:46 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:35:46 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:35:46 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:35:46 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:35:47 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:35:47 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:35:39.695197 End time: 2026-08-04 07:35:47.373208 2026-08-04 07:35:47 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:35:47 INFO tclean::::casa ########################################## 2026-08-04 07:35:47 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:35:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:35:47 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:35:47 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:35:47 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:35:47 2026****** 2026-08-04 07:35:47 INFO ImageFitter::fit+ 2026-08-04 07:35:47 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:35:47 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:35:47 INFO ImageFitter::fit+ --- region: 2026-08-04 07:35:47 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:35:47 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:35:47 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:35:47 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:35:47 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:35:47 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:35:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:35:47 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.996 to 19:53:46.513, +40.06.39.996) 2026-08-04 07:35:47 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:35:47 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:35:47 INFO imstat::::casa ########################################## 2026-08-04 07:35:47 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:35:47 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:35:47 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:35:47 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:35:47 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:35:47 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:35:47 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:35:47 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:35:47 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:35:47 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:35:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:35:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:35:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:35:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:35:47 INFO imstat:::: Values --- 2026-08-04 07:35:47 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:35:47 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:35:47 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:35:47 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-08-04 07:35:47 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:35:47 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-08-04 07:35:47 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:35:47 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-08-04 07:35:47 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:35:47 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:35:47 INFO imstat:::: Statistics --- 2026-08-04 07:35:47 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:35:47 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:35:47 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:35:47 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:35:47 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-08-04 07:35:47 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-08-04 07:35:47 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-08-04 07:35:47 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-08-04 07:35:47 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-08-04 07:35:47 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:35:47 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:35:47 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:35:47 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:35:47 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:35:47 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:35:47 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.780943e-05 4.999996e+00 2026-08-04 07:35:47 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:35:47.425931 End time: 2026-08-04 07:35:47.454599 2026-08-04 07:35:47 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:35:47 INFO imstat::::casa ########################################## 2026-08-04 07:35:47 INFO phaseshift::::casa ########################################## 2026-08-04 07:35:47 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:35:47 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 40.100000528deg' ) 2026-08-04 07:35:47 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:35:47 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:35:47 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:35:47 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:35:47 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:35:47 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:35:47 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:35:47 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:35:47 INFO MSTransformManager::open Select data 2026-08-04 07:35:47 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:35:50 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:35:50 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 40.100000528deg' successfully parsed 2026-08-04 07:35:50 INFO phaseshift::::casa Shift phase center 2026-08-04 07:35:50 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:35:50 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:35:47.468592 End time: 2026-08-04 07:35:50.134619 2026-08-04 07:35:50 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:35:50 INFO phaseshift::::casa ########################################## 2026-08-04 07:35:50 INFO tclean::::casa ########################################## 2026-08-04 07:35:50 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:35:50 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:35:50 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:35:50 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:35:50 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:35:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:35:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:35:50 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:35:50 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:35:50 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:35:50 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:35:50 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:35:50 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:35:50 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:35:51 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:35:51 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027287 2026-08-04 07:35:51 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:35:51 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:35:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:35:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:35:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:35:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:35:52 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:35:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:35:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:35:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:35:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:35:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:35:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:35:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:35:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:35:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:35:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:35:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:35:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:35:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:35:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:35:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:35:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:35:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:35:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:35:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:35:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:35:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:35:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:35:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:35:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:35:56 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:35:56 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:35:56 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:35:57 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:35:57 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:35:57 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:35:50.187803 End time: 2026-08-04 07:35:57.323516 2026-08-04 07:35:57 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:35:57 INFO tclean::::casa ########################################## 2026-08-04 07:35:57 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:35:57 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:35:57 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:35:57 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:35:57 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:35:57 2026****** 2026-08-04 07:35:57 INFO ImageFitter::fit+ 2026-08-04 07:35:57 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:35:57 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:35:57 INFO ImageFitter::fit+ --- region: 2026-08-04 07:35:57 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:35:57 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:35:57 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:35:57 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:35:57 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:35:57 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:35:57 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:35:57 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:35:57 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:35:57 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:35:57 INFO imstat::::casa ########################################## 2026-08-04 07:35:57 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:35:57 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:35:57 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:35:57 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:35:57 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:35:57 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:35:57 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:35:57 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:35:57 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:35:57 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:35:57 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:35:57 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:35:57 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:35:57 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:35:57 INFO imstat:::: Values --- 2026-08-04 07:35:57 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:35:57 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:35:57 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:35:57 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-08-04 07:35:57 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:35:57 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:35:57 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:35:57 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-08-04 07:35:57 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:35:57 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:35:57 INFO imstat:::: Statistics --- 2026-08-04 07:35:57 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:35:57 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:35:57 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:35:57 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:35:57 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-08-04 07:35:57 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-08-04 07:35:57 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-08-04 07:35:57 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-08-04 07:35:57 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-08-04 07:35:57 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:35:57 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:35:57 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:35:57 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:35:57 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:35:57 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:35:57 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779537e-05 4.999996e+00 2026-08-04 07:35:57 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:35:57.385284 End time: 2026-08-04 07:35:57.409126 2026-08-04 07:35:57 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:35:57 INFO imstat::::casa ########################################## 2026-08-04 07:35:57 INFO phaseshift::::casa ########################################## 2026-08-04 07:35:57 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:35:57 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 0.699877039rad' ) 2026-08-04 07:35:57 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:35:57 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:35:57 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:35:57 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:35:57 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:35:57 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:35:57 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:35:57 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:35:57 INFO MSTransformManager::open Select data 2026-08-04 07:35:57 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:35:59 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:35:59 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 0.699877039rad' successfully parsed 2026-08-04 07:35:59 INFO phaseshift::::casa Shift phase center 2026-08-04 07:36:00 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:36:00 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:35:57.425165 End time: 2026-08-04 07:36:00.029570 2026-08-04 07:36:00 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:36:00 INFO phaseshift::::casa ########################################## 2026-08-04 07:36:00 INFO tclean::::casa ########################################## 2026-08-04 07:36:00 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:36:00 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:36:00 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:36:00 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:36:00 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:36:00 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:36:00 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:36:00 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:36:00 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:36:00 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:36:00 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:36:00 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:36:00 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:36:00 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:36:02 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:36:02 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025942 2026-08-04 07:36:02 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:36:02 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:36:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:36:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:36:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:36:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:36:04 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:36:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:36:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:36:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:36:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:36:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:36:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:36:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:36:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:36:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:36:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:36:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:36:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:36:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:36:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:36:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:36:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:36:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:36:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:36:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:36:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:36:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:36:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:36:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:36:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:36:16 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:36:16 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:36:16 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:36:17 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:36:17 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:36:20 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:36:00.092869 End time: 2026-08-04 07:36:19.680726 2026-08-04 07:36:20 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:36:20 INFO tclean::::casa ########################################## 2026-08-04 07:36:20 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:36:20 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:36:20 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:36:20 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:36:20 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:36:20 2026****** 2026-08-04 07:36:20 INFO ImageFitter::fit+ 2026-08-04 07:36:20 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:36:20 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:36:20 INFO ImageFitter::fit+ --- region: 2026-08-04 07:36:20 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:36:20 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:36:20 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:36:20 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:36:20 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:36:20 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:36:20 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:36:20 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:36:20 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:36:20 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:36:20 INFO imstat::::casa ########################################## 2026-08-04 07:36:20 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:36:20 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:36:20 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:36:20 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:36:20 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:36:20 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:36:20 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:36:20 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:36:20 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:36:20 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:36:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:36:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:36:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:36:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:36:20 INFO imstat:::: Values --- 2026-08-04 07:36:20 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:36:20 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:36:20 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:36:20 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-08-04 07:36:20 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:36:20 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:36:20 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:36:20 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-08-04 07:36:20 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:36:20 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:36:20 INFO imstat:::: Statistics --- 2026-08-04 07:36:20 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:36:20 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:36:20 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:36:20 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:36:20 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-08-04 07:36:20 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-08-04 07:36:20 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-08-04 07:36:20 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-08-04 07:36:20 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-08-04 07:36:20 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:36:20 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:36:20 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:36:20 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:36:20 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:36:20 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:36:20 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.778665e-05 4.999996e+00 2026-08-04 07:36:20 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:36:19.759443 End time: 2026-08-04 07:36:19.786896 2026-08-04 07:36:20 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:36:20 INFO imstat::::casa ########################################## 2026-08-04 07:36:20 INFO phaseshift::::casa ########################################## 2026-08-04 07:36:20 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:36:20 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 40d06m0.0019' ) 2026-08-04 07:36:20 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:36:20 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:36:20 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:36:20 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:36:20 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:36:20 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:36:20 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:36:20 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:36:20 INFO MSTransformManager::open Select data 2026-08-04 07:36:20 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:36:25 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:36:25 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 40d06m0.0019' successfully parsed 2026-08-04 07:36:25 INFO phaseshift::::casa Shift phase center 2026-08-04 07:36:27 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:36:27 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:36:19.803889 End time: 2026-08-04 07:36:26.825437 2026-08-04 07:36:27 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:36:27 INFO phaseshift::::casa ########################################## 2026-08-04 07:36:27 INFO tclean::::casa ########################################## 2026-08-04 07:36:27 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:36:27 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:36:27 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:36:27 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:36:27 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:36:27 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:36:27 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:36:27 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:36:27 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:36:27 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:36:27 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:36:27 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:36:27 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:36:27 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:36:28 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:36:28 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027348 2026-08-04 07:36:28 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:36:29 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:36:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:36:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:36:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:36:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:36:33 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:36:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:36:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:36:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:36:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:36:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:36:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:36:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:36:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:36:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:36:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:36:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:36:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:36:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:36:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:36:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:36:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:36:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:36:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:36:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:36:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:36:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:36:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:36:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:36:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:36:39 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:36:39 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:36:39 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:36:40 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:36:40 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:36:41 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:36:26.886309 End time: 2026-08-04 07:36:40.898573 2026-08-04 07:36:41 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:36:41 INFO tclean::::casa ########################################## 2026-08-04 07:36:41 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:36:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:36:41 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:36:41 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:36:41 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:36:41 2026****** 2026-08-04 07:36:41 INFO ImageFitter::fit+ 2026-08-04 07:36:41 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:36:41 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:36:41 INFO ImageFitter::fit+ --- region: 2026-08-04 07:36:41 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:36:41 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:36:41 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:36:41 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:36:41 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:36:41 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:36:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:36:41 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:36:41 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:36:41 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:36:41 INFO imstat::::casa ########################################## 2026-08-04 07:36:41 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:36:41 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:36:41 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:36:41 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:36:41 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:36:41 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:36:41 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:36:41 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:36:41 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:36:41 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:36:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:36:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:36:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:36:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:36:41 INFO imstat:::: Values --- 2026-08-04 07:36:41 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:36:41 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:36:41 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:36:41 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-08-04 07:36:41 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:36:41 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:36:41 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:36:41 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-08-04 07:36:41 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:36:41 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:36:41 INFO imstat:::: Statistics --- 2026-08-04 07:36:41 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:36:41 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:36:41 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:36:41 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:36:41 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-08-04 07:36:41 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-08-04 07:36:41 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-08-04 07:36:41 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-08-04 07:36:41 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-08-04 07:36:41 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:36:41 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:36:41 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:36:41 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:36:41 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:36:41 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:36:41 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779541e-05 4.999996e+00 2026-08-04 07:36:41 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:36:40.974739 End time: 2026-08-04 07:36:41.002606 2026-08-04 07:36:41 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:36:41 INFO imstat::::casa ########################################## 2026-08-04 07:36:41 INFO phaseshift::::casa ########################################## 2026-08-04 07:36:41 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:36:41 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 02:40:24.0001' ) 2026-08-04 07:36:41 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:36:41 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:36:41 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:36:41 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:36:41 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:36:41 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:36:41 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:36:41 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:36:41 INFO MSTransformManager::open Select data 2026-08-04 07:36:41 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:36:45 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-08-04 07:36:45 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 02:40:24.0001' successfully parsed 2026-08-04 07:36:45 INFO phaseshift::::casa Shift phase center 2026-08-04 07:36:45 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:36:45 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:36:41.019311 End time: 2026-08-04 07:36:45.412824 2026-08-04 07:36:45 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:36:45 INFO phaseshift::::casa ########################################## 2026-08-04 07:36:45 INFO tclean::::casa ########################################## 2026-08-04 07:36:45 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:36:45 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:36:45 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:36:45 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:36:45 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:36:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:36:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:36:46 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:36:46 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:36:46 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:36:46 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:36:46 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:36:46 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:36:46 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:36:47 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:36:47 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024794 2026-08-04 07:36:47 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:36:47 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:36:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:36:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:36:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:36:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:36:48 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:36:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:36:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:36:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:36:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:36:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:36:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:36:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:36:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:36:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:36:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:36:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:36:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:36:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:36:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:36:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:36:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:36:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:36:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:36:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:36:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:36:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:36:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:36:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:36:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:36:53 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:36:53 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:36:53 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:36:54 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:36:54 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:36:54 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:36:45.465693 End time: 2026-08-04 07:36:54.456354 2026-08-04 07:36:54 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:36:54 INFO tclean::::casa ########################################## 2026-08-04 07:36:54 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:36:54 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:36:54 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:36:54 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:36:54 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:36:54 2026****** 2026-08-04 07:36:54 INFO ImageFitter::fit+ 2026-08-04 07:36:54 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:36:54 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:36:54 INFO ImageFitter::fit+ --- region: 2026-08-04 07:36:54 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:36:54 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:36:54 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:36:54 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:36:54 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:36:54 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:36:54 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:36:54 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.996 to 19:53:46.513, +40.06.39.996) 2026-08-04 07:36:55 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:36:55 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:36:55 INFO imstat::::casa ########################################## 2026-08-04 07:36:55 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:36:55 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:36:55 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:36:55 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:36:55 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:36:55 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:36:55 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:36:55 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:36:55 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:36:55 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:36:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:36:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:36:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:36:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:36:55 INFO imstat:::: Values --- 2026-08-04 07:36:55 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:36:55 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:36:55 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:36:55 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-08-04 07:36:55 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:36:55 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-08-04 07:36:55 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:36:55 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-08-04 07:36:55 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:36:55 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:36:55 INFO imstat:::: Statistics --- 2026-08-04 07:36:55 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:36:55 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:36:55 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:36:55 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:36:55 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-08-04 07:36:55 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-08-04 07:36:55 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-08-04 07:36:55 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-08-04 07:36:55 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-08-04 07:36:55 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:36:55 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:36:55 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:36:55 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:36:55 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:36:55 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:36:55 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.780943e-05 4.999996e+00 2026-08-04 07:36:55 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:36:54.517159 End time: 2026-08-04 07:36:54.540809 2026-08-04 07:36:55 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:36:55 INFO imstat::::casa ########################################## 2026-08-04 07:36:55 INFO phaseshift::::casa ########################################## 2026-08-04 07:36:55 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:36:55 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 40.100000528deg' ) 2026-08-04 07:36:55 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:36:55 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:36:55 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:36:55 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:36:55 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:36:55 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:36:55 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:36:55 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:36:55 INFO MSTransformManager::open Select data 2026-08-04 07:36:55 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:36:56 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:36:56 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 40.100000528deg' successfully parsed 2026-08-04 07:36:56 INFO phaseshift::::casa Shift phase center 2026-08-04 07:36:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:36:57 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:36:54.555953 End time: 2026-08-04 07:36:56.697168 2026-08-04 07:36:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:36:57 INFO phaseshift::::casa ########################################## 2026-08-04 07:36:57 INFO tclean::::casa ########################################## 2026-08-04 07:36:57 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:36:57 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:36:57 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:36:57 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:36:57 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:36:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:36:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:36:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:36:57 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:36:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:36:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:36:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:36:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:36:57 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:36:57 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:36:58 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.013298 2026-08-04 07:36:58 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:36:58 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:36:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:36:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:36:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:36:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:36:59 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:36:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:36:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:36:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:36:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:36:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:37:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:37:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:37:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:37:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:37:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:37:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:37:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:37:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:37:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:37:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:37:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:37:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:37:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:37:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:37:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:37:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:37:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:37:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:37:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:37:02 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:37:02 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:37:02 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:37:03 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:37:03 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:37:04 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:36:56.752810 End time: 2026-08-04 07:37:04.110884 2026-08-04 07:37:04 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:37:04 INFO tclean::::casa ########################################## 2026-08-04 07:37:04 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:37:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:37:04 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:37:04 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:37:04 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:37:04 2026****** 2026-08-04 07:37:04 INFO ImageFitter::fit+ 2026-08-04 07:37:04 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:37:04 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:37:04 INFO ImageFitter::fit+ --- region: 2026-08-04 07:37:04 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:37:04 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:37:04 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:37:04 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:37:04 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:37:04 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:37:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:37:04 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:37:04 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:37:04 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:37:04 INFO imstat::::casa ########################################## 2026-08-04 07:37:04 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:37:04 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:37:04 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:37:04 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:37:04 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:37:04 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:37:04 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:37:04 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:37:04 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:37:04 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:37:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:37:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:37:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:37:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:37:04 INFO imstat:::: Values --- 2026-08-04 07:37:04 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:37:04 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:37:04 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:37:04 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-08-04 07:37:04 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:37:04 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:37:04 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:37:04 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-08-04 07:37:04 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:37:04 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:37:04 INFO imstat:::: Statistics --- 2026-08-04 07:37:04 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:37:04 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:37:04 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:37:04 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:37:04 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-08-04 07:37:04 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-08-04 07:37:04 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-08-04 07:37:04 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-08-04 07:37:04 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-08-04 07:37:04 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:37:04 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:37:04 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:37:04 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:37:04 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:37:04 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:37:04 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779537e-05 4.999996e+00 2026-08-04 07:37:04 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:37:04.174261 End time: 2026-08-04 07:37:04.199846 2026-08-04 07:37:04 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:37:04 INFO imstat::::casa ########################################## 2026-08-04 07:37:04 INFO phaseshift::::casa ########################################## 2026-08-04 07:37:04 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:37:04 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 0.699877039rad' ) 2026-08-04 07:37:04 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:37:04 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:37:04 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:37:04 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:37:04 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:37:04 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:37:04 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:37:04 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:37:04 INFO MSTransformManager::open Select data 2026-08-04 07:37:04 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:37:07 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:37:07 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 0.699877039rad' successfully parsed 2026-08-04 07:37:07 INFO phaseshift::::casa Shift phase center 2026-08-04 07:37:07 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:37:07 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:37:04.214744 End time: 2026-08-04 07:37:07.448156 2026-08-04 07:37:07 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:37:07 INFO phaseshift::::casa ########################################## 2026-08-04 07:37:07 INFO tclean::::casa ########################################## 2026-08-04 07:37:07 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:37:07 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:37:07 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:37:08 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:37:08 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:37:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:37:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:37:08 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:37:08 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:37:08 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:37:08 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:37:08 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:37:08 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:37:08 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:37:09 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:37:09 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025347 2026-08-04 07:37:09 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:37:09 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:37:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:37:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:37:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:37:12 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:37:12 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:37:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:37:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:37:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:37:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:37:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:37:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:37:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:37:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:37:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:37:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:37:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:37:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:37:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:37:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:37:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:37:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:37:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:37:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:37:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:37:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:37:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:37:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:37:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:37:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:37:24 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:37:24 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:37:24 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:37:26 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:37:26 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:37:27 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:37:07.495947 End time: 2026-08-04 07:37:27.424986 2026-08-04 07:37:27 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:37:27 INFO tclean::::casa ########################################## 2026-08-04 07:37:27 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:37:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:37:27 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:37:27 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:37:27 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:37:27 2026****** 2026-08-04 07:37:27 INFO ImageFitter::fit+ 2026-08-04 07:37:27 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:37:27 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:37:27 INFO ImageFitter::fit+ --- region: 2026-08-04 07:37:27 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:37:27 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:37:27 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:37:27 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:37:27 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:37:27 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:37:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:37:27 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:37:27 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:37:27 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:37:28 INFO imstat::::casa ########################################## 2026-08-04 07:37:28 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:37:28 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:37:28 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:37:28 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:37:28 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:37:28 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:37:28 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:37:28 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:37:28 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:37:28 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:37:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:37:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:37:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:37:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:37:28 INFO imstat:::: Values --- 2026-08-04 07:37:28 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:37:28 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:37:28 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:37:28 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-08-04 07:37:28 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:37:28 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:37:28 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:37:28 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-08-04 07:37:28 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:37:28 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:37:28 INFO imstat:::: Statistics --- 2026-08-04 07:37:28 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:37:28 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:37:28 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:37:28 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:37:28 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-08-04 07:37:28 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-08-04 07:37:28 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-08-04 07:37:28 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-08-04 07:37:28 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-08-04 07:37:28 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:37:28 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:37:28 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:37:28 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:37:28 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:37:28 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:37:28 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.778665e-05 4.999996e+00 2026-08-04 07:37:28 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:37:27.503042 End time: 2026-08-04 07:37:27.530708 2026-08-04 07:37:28 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:37:28 INFO imstat::::casa ########################################## 2026-08-04 07:37:28 INFO phaseshift::::casa ########################################## 2026-08-04 07:37:28 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:37:28 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 40d06m0.0019' ) 2026-08-04 07:37:28 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:37:28 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:37:28 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:37:28 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:37:28 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:37:28 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:37:28 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:37:28 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:37:28 INFO MSTransformManager::open Select data 2026-08-04 07:37:28 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:37:31 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:37:31 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 40d06m0.0019' successfully parsed 2026-08-04 07:37:31 INFO phaseshift::::casa Shift phase center 2026-08-04 07:37:32 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:37:32 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:37:27.547759 End time: 2026-08-04 07:37:32.405546 2026-08-04 07:37:32 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:37:32 INFO phaseshift::::casa ########################################## 2026-08-04 07:37:32 INFO tclean::::casa ########################################## 2026-08-04 07:37:32 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:37:32 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:37:32 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:37:32 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:37:32 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:37:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:37:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:37:33 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:37:33 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:37:33 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:37:33 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:37:33 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:37:33 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:37:33 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:37:34 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:37:34 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021378 2026-08-04 07:37:34 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:37:34 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:37:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:37:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:37:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:37:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:37:36 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:37:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:37:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:37:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:37:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:37:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:37:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:37:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:37:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:37:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:37:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:37:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:37:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:37:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:37:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:37:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:37:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:37:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:37:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:37:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:37:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:37:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:37:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:37:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:37:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:37:45 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:37:45 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:37:45 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:37:45 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:37:46 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:37:48 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:37:32.456742 End time: 2026-08-04 07:37:47.879450 2026-08-04 07:37:48 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:37:48 INFO tclean::::casa ########################################## 2026-08-04 07:37:48 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:37:48 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:37:48 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:37:48 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:37:48 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:37:48 2026****** 2026-08-04 07:37:48 INFO ImageFitter::fit+ 2026-08-04 07:37:48 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:37:48 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:37:48 INFO ImageFitter::fit+ --- region: 2026-08-04 07:37:48 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:37:48 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:37:48 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:37:48 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:37:48 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:37:48 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:37:48 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:37:48 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:37:48 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116878 Jy 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126494 Jy 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:37:48 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:37:48 INFO imstat::::casa ########################################## 2026-08-04 07:37:48 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:37:48 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:37:48 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:37:48 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:37:48 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:37:48 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:37:48 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:37:48 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:37:48 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:37:48 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:37:48 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:37:48 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:37:48 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:37:48 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:37:48 INFO imstat:::: Values --- 2026-08-04 07:37:48 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:37:48 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:37:48 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:37:48 INFO imstat:::: -- minimum value [min]: -7.77984e-05 Jy/beam 2026-08-04 07:37:48 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:37:48 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:37:48 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:37:48 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-08-04 07:37:48 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:37:48 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:37:48 INFO imstat:::: Statistics --- 2026-08-04 07:37:48 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:37:48 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:37:48 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:37:48 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:37:48 INFO imstat:::: -- Median of the pixel values [median]: -1.86704e-05 Jy/beam 2026-08-04 07:37:48 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7365e-05 Jy/beam 2026-08-04 07:37:48 INFO imstat:::: -- IQR [quartile]: 3.56348e-05 Jy/beam 2026-08-04 07:37:48 INFO imstat:::: -- First quartile [q1]: -3.45131e-05 Jy/beam 2026-08-04 07:37:48 INFO imstat:::: -- Third quartile [q3]: 1.12172e-06 Jy/beam 2026-08-04 07:37:48 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:37:48 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:37:48 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:37:48 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:37:48 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:37:48 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:37:48 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779843e-05 4.999996e+00 2026-08-04 07:37:48 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:37:47.943820 End time: 2026-08-04 07:37:47.968461 2026-08-04 07:37:48 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:37:48 INFO imstat::::casa ########################################## 2026-08-04 07:37:48 INFO phaseshift::::casa ########################################## 2026-08-04 07:37:48 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:37:48 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 02:40:24.0001' ) 2026-08-04 07:37:48 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:37:48 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:37:48 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:37:48 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:37:48 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:37:48 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:37:48 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:37:48 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:37:48 INFO MSTransformManager::open Select data 2026-08-04 07:37:48 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:37:52 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-08-04 07:37:52 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 02:40:24.0001' successfully parsed 2026-08-04 07:37:52 INFO phaseshift::::casa Shift phase center 2026-08-04 07:37:53 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:37:53 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:37:47.984256 End time: 2026-08-04 07:37:52.666626 2026-08-04 07:37:53 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:37:53 INFO phaseshift::::casa ########################################## 2026-08-04 07:37:53 INFO tclean::::casa ########################################## 2026-08-04 07:37:53 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:37:53 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:37:53 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:37:53 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:37:53 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:37:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:37:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:37:53 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:37:53 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:37:53 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:37:53 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:37:53 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:37:53 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:37:53 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:37:54 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:37:54 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026471 2026-08-04 07:37:54 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:37:54 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:37:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:37:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:37:57 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:37:57 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:37:57 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:37:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:37:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:37:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:37:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:37:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:37:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:37:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:37:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:37:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:37:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:37:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:38:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:38:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:38:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:38:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:38:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:38:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:38:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:38:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:38:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:38:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:38:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:38:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:38:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:38:04 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:38:04 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:38:04 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:38:04 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:38:05 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:38:06 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:37:52.705988 End time: 2026-08-04 07:38:06.298280 2026-08-04 07:38:06 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:38:06 INFO tclean::::casa ########################################## 2026-08-04 07:38:06 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:38:06 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:38:06 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:38:06 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:38:06 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:38:06 2026****** 2026-08-04 07:38:06 INFO ImageFitter::fit+ 2026-08-04 07:38:06 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:38:06 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:38:06 INFO ImageFitter::fit+ --- region: 2026-08-04 07:38:06 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:38:06 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:38:06 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:38:06 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:38:06 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:38:06 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:38:06 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:38:06 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.996 to 19:53:46.513, +40.06.39.996) 2026-08-04 07:38:06 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116894 Jy 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126508 Jy 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:38:06 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:38:06 INFO imstat::::casa ########################################## 2026-08-04 07:38:06 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:38:06 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:38:06 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:38:06 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:38:06 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:38:06 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:38:06 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:38:06 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:38:06 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:38:06 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:38:06 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:38:06 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:38:06 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:38:06 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:38:06 INFO imstat:::: Values --- 2026-08-04 07:38:06 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:38:06 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:38:06 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:38:06 INFO imstat:::: -- minimum value [min]: -7.78076e-05 Jy/beam 2026-08-04 07:38:06 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:38:06 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-08-04 07:38:06 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:38:06 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-08-04 07:38:06 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:38:06 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:38:06 INFO imstat:::: Statistics --- 2026-08-04 07:38:06 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:38:06 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:38:06 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:38:06 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:38:06 INFO imstat:::: -- Median of the pixel values [median]: -1.86848e-05 Jy/beam 2026-08-04 07:38:06 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73951e-05 Jy/beam 2026-08-04 07:38:06 INFO imstat:::: -- IQR [quartile]: 3.56676e-05 Jy/beam 2026-08-04 07:38:06 INFO imstat:::: -- First quartile [q1]: -3.45186e-05 Jy/beam 2026-08-04 07:38:06 INFO imstat:::: -- Third quartile [q3]: 1.14894e-06 Jy/beam 2026-08-04 07:38:06 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:38:06 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:38:06 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:38:06 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:38:06 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:38:06 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:38:06 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.780757e-05 4.999996e+00 2026-08-04 07:38:06 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:38:06.365330 End time: 2026-08-04 07:38:06.390474 2026-08-04 07:38:06 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:38:06 INFO imstat::::casa ########################################## 2026-08-04 07:38:06 INFO phaseshift::::casa ########################################## 2026-08-04 07:38:06 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:38:06 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 40.100000528deg' ) 2026-08-04 07:38:06 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:38:06 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:38:06 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:38:06 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:38:06 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:38:06 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:38:06 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:38:06 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:38:06 INFO MSTransformManager::open Select data 2026-08-04 07:38:06 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:38:11 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:38:11 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 40.100000528deg' successfully parsed 2026-08-04 07:38:11 INFO phaseshift::::casa Shift phase center 2026-08-04 07:38:11 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:38:12 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:38:06.405000 End time: 2026-08-04 07:38:11.519985 2026-08-04 07:38:12 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:38:12 INFO phaseshift::::casa ########################################## 2026-08-04 07:38:12 INFO tclean::::casa ########################################## 2026-08-04 07:38:12 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:38:12 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:38:12 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:38:12 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:38:12 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:38:12 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:38:12 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:38:12 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:38:12 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:38:12 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:38:12 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:38:12 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:38:12 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:38:12 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:38:13 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:38:13 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022913 2026-08-04 07:38:13 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:38:13 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:38:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:38:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:38:14 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:38:14 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:38:14 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:38:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:38:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:38:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:38:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:38:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:38:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:38:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:38:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:38:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:38:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:38:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:38:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:38:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:38:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:38:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:38:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:38:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:38:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:38:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:38:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:38:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:38:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:38:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:38:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:38:19 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:38:19 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:38:19 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:38:20 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:38:20 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:38:24 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:38:11.577205 End time: 2026-08-04 07:38:23.813936 2026-08-04 07:38:24 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:38:24 INFO tclean::::casa ########################################## 2026-08-04 07:38:24 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:38:24 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:38:24 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:38:24 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:38:24 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:38:24 2026****** 2026-08-04 07:38:24 INFO ImageFitter::fit+ 2026-08-04 07:38:24 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:38:24 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:38:24 INFO ImageFitter::fit+ --- region: 2026-08-04 07:38:24 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:38:24 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:38:24 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:38:24 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:38:24 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:38:24 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:38:24 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:38:24 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:38:24 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116882 Jy 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:38:24 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:38:24 INFO imstat::::casa ########################################## 2026-08-04 07:38:24 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:38:24 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:38:24 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:38:24 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:38:24 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:38:24 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:38:24 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:38:24 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:38:24 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:38:24 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:38:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:38:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:38:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:38:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:38:24 INFO imstat:::: Values --- 2026-08-04 07:38:24 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:38:24 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:38:24 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:38:24 INFO imstat:::: -- minimum value [min]: -7.77982e-05 Jy/beam 2026-08-04 07:38:24 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:38:24 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:38:24 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:38:24 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-08-04 07:38:24 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:38:24 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:38:24 INFO imstat:::: Statistics --- 2026-08-04 07:38:24 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:38:24 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:38:24 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:38:24 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:38:24 INFO imstat:::: -- Median of the pixel values [median]: -1.86711e-05 Jy/beam 2026-08-04 07:38:24 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73646e-05 Jy/beam 2026-08-04 07:38:24 INFO imstat:::: -- IQR [quartile]: 3.56367e-05 Jy/beam 2026-08-04 07:38:24 INFO imstat:::: -- First quartile [q1]: -3.45138e-05 Jy/beam 2026-08-04 07:38:24 INFO imstat:::: -- Third quartile [q3]: 1.12291e-06 Jy/beam 2026-08-04 07:38:24 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:38:24 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:38:24 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:38:24 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:38:24 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:38:24 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:38:24 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.779823e-05 4.999996e+00 2026-08-04 07:38:24 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:38:23.894420 End time: 2026-08-04 07:38:23.922032 2026-08-04 07:38:24 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:38:24 INFO imstat::::casa ########################################## 2026-08-04 07:38:24 INFO phaseshift::::casa ########################################## 2026-08-04 07:38:24 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:38:24 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 0.699877039rad' ) 2026-08-04 07:38:24 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:38:24 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:38:24 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:38:24 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:38:24 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:38:24 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:38:24 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:38:24 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:38:24 INFO MSTransformManager::open Select data 2026-08-04 07:38:24 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:38:27 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:38:27 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 0.699877039rad' successfully parsed 2026-08-04 07:38:27 INFO phaseshift::::casa Shift phase center 2026-08-04 07:38:27 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:38:27 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:38:23.938913 End time: 2026-08-04 07:38:27.435276 2026-08-04 07:38:27 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:38:27 INFO phaseshift::::casa ########################################## 2026-08-04 07:38:27 INFO tclean::::casa ########################################## 2026-08-04 07:38:27 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:38:27 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:38:27 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:38:27 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:38:27 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:38:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:38:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:38:28 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:38:28 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:38:28 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:38:28 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:38:28 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:38:28 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:38:28 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:38:28 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:38:29 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.014825 2026-08-04 07:38:29 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:38:29 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:38:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:38:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:38:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:38:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:38:30 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:38:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:38:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:38:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:38:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:38:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:38:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:38:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:38:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:38:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:38:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:38:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:38:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:38:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374443277716637, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:38:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:38:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:38:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:38:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:38:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:38:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852561634033918, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:38:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:38:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:38:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:38:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:38:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:38:39 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:38:39 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:38:39 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:38:40 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:38:40 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:38:42 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:38:27.475023 End time: 2026-08-04 07:38:42.167322 2026-08-04 07:38:42 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:38:42 INFO tclean::::casa ########################################## 2026-08-04 07:38:42 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:38:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:38:42 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:38:42 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:38:42 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:38:42 2026****** 2026-08-04 07:38:42 INFO ImageFitter::fit+ 2026-08-04 07:38:42 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:38:42 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:38:42 INFO ImageFitter::fit+ --- region: 2026-08-04 07:38:42 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:38:42 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:38:42 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:38:42 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:38:42 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:38:42 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:38:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:38:42 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:38:42 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:38:42 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:38:42 INFO imstat::::casa ########################################## 2026-08-04 07:38:42 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:38:42 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:38:42 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:38:42 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:38:42 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:38:42 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:38:42 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:38:42 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:38:42 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:38:42 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:38:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:38:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:38:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:38:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:38:42 INFO imstat:::: Values --- 2026-08-04 07:38:42 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:38:42 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:38:42 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:38:42 INFO imstat:::: -- minimum value [min]: -7.77898e-05 Jy/beam 2026-08-04 07:38:42 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:38:42 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:38:42 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:38:42 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-08-04 07:38:42 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:38:42 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:38:42 INFO imstat:::: Statistics --- 2026-08-04 07:38:42 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:38:42 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:38:42 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:38:42 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:38:42 INFO imstat:::: -- Median of the pixel values [median]: -1.86769e-05 Jy/beam 2026-08-04 07:38:42 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73662e-05 Jy/beam 2026-08-04 07:38:42 INFO imstat:::: -- IQR [quartile]: 3.5634e-05 Jy/beam 2026-08-04 07:38:42 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-08-04 07:38:42 INFO imstat:::: -- Third quartile [q3]: 1.1187e-06 Jy/beam 2026-08-04 07:38:42 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:38:42 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:38:42 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:38:42 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:38:42 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:38:42 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:38:42 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.778978e-05 4.999996e+00 2026-08-04 07:38:42 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:38:42.239730 End time: 2026-08-04 07:38:42.279205 2026-08-04 07:38:42 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:38:42 INFO imstat::::casa ########################################## 2026-08-04 07:38:42 INFO phaseshift::::casa ########################################## 2026-08-04 07:38:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:38:42 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 +006d21m09.7433' ) 2026-08-04 07:38:42 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:38:42 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:38:42 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:38:42 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:38:42 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:38:42 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:38:42 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:38:42 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:38:42 INFO MSTransformManager::open Select data 2026-08-04 07:38:42 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:38:45 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:38:45 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 +006d21m09.7433' successfully parsed 2026-08-04 07:38:45 INFO phaseshift::::casa Shift phase center 2026-08-04 07:38:47 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:38:47 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:38:42.306469 End time: 2026-08-04 07:38:46.537746 2026-08-04 07:38:47 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:38:47 INFO phaseshift::::casa ########################################## 2026-08-04 07:38:47 INFO tclean::::casa ########################################## 2026-08-04 07:38:47 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:38:47 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:38:47 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:38:47 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:38:47 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:38:47 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:38:47 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:38:47 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:38:47 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:38:47 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:38:47 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:38:47 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:38:47 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:38:47 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:38:48 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:38:48 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023569 2026-08-04 07:38:48 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:38:48 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:38:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:38:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:38:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:38:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:38:49 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:38:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:38:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:38:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:38:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:38:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:38:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:38:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:38:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:38:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:38:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:38:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:38:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:38:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:38:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:38:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:38:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:38:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:38:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:38:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:38:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:38:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:38:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:38:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:38:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:38:54 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:38:54 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:38:54 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:38:57 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:38:57 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:39:00 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:38:46.589345 End time: 2026-08-04 07:38:59.881783 2026-08-04 07:39:00 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:39:00 INFO tclean::::casa ########################################## 2026-08-04 07:39:00 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:39:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:39:00 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:39:00 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:39:00 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:39:00 2026****** 2026-08-04 07:39:00 INFO ImageFitter::fit+ 2026-08-04 07:39:00 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:39:00 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:39:00 INFO ImageFitter::fit+ --- region: 2026-08-04 07:39:00 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:39:00 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:39:00 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:39:00 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:39:00 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:39:00 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:39:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:39:00 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:39:00 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:39:00 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:39:00 INFO imstat::::casa ########################################## 2026-08-04 07:39:00 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:39:00 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:39:00 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:39:00 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:39:00 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:39:00 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:39:00 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:39:00 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:39:00 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:39:00 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:39:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:39:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:39:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:39:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:39:00 INFO imstat:::: Values --- 2026-08-04 07:39:00 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:39:00 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:39:00 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:39:00 INFO imstat:::: -- minimum value [min]: -7.77795e-05 Jy/beam 2026-08-04 07:39:00 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:39:00 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:39:00 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:39:00 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:39:00 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:39:00 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:39:00 INFO imstat:::: Statistics --- 2026-08-04 07:39:00 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:39:00 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:39:00 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:39:00 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:39:00 INFO imstat:::: -- Median of the pixel values [median]: -1.86702e-05 Jy/beam 2026-08-04 07:39:00 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73612e-05 Jy/beam 2026-08-04 07:39:00 INFO imstat:::: -- IQR [quartile]: 3.56029e-05 Jy/beam 2026-08-04 07:39:00 INFO imstat:::: -- First quartile [q1]: -3.45082e-05 Jy/beam 2026-08-04 07:39:00 INFO imstat:::: -- Third quartile [q3]: 1.09472e-06 Jy/beam 2026-08-04 07:39:00 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:39:00 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:39:00 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:39:00 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:39:00 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:39:00 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:39:00 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777946e-05 4.999996e+00 2026-08-04 07:39:00 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:38:59.960989 End time: 2026-08-04 07:38:59.988618 2026-08-04 07:39:00 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:39:00 INFO imstat::::casa ########################################## 2026-08-04 07:39:00 INFO phaseshift::::casa ########################################## 2026-08-04 07:39:00 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:39:00 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 00:25:24.6496' ) 2026-08-04 07:39:00 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:39:00 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:39:00 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:39:00 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:39:00 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:39:00 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:39:00 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:39:00 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:39:00 INFO MSTransformManager::open Select data 2026-08-04 07:39:00 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:39:04 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-08-04 07:39:04 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 00:25:24.6496' successfully parsed 2026-08-04 07:39:04 INFO phaseshift::::casa Shift phase center 2026-08-04 07:39:05 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:39:05 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:39:00.005928 End time: 2026-08-04 07:39:05.066253 2026-08-04 07:39:05 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:39:05 INFO phaseshift::::casa ########################################## 2026-08-04 07:39:05 INFO tclean::::casa ########################################## 2026-08-04 07:39:05 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:39:05 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:39:05 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:39:05 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:39:05 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:39:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:39:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:39:05 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:39:05 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:39:05 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:39:05 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:39:05 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:39:05 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:39:05 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:39:07 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:39:07 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025218 2026-08-04 07:39:07 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:39:07 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:39:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:39:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:39:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:39:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:39:09 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:39:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:39:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:39:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:39:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:39:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:39:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:39:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:39:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:39:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:39:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:39:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:39:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:39:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:39:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:39:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:39:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:39:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:39:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:39:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:39:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:39:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:39:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:39:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:39:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:39:16 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:39:16 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:39:16 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:39:17 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:39:17 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:39:18 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:39:05.119989 End time: 2026-08-04 07:39:17.835818 2026-08-04 07:39:18 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:39:18 INFO tclean::::casa ########################################## 2026-08-04 07:39:18 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:39:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:39:18 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:39:18 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:39:18 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:39:18 2026****** 2026-08-04 07:39:18 INFO ImageFitter::fit+ 2026-08-04 07:39:18 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:39:18 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:39:18 INFO ImageFitter::fit+ --- region: 2026-08-04 07:39:18 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:39:18 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:39:18 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:39:18 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:39:18 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:39:18 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:39:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:39:18 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:39:18 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116907 Jy 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:39:18 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:39:18 INFO imstat::::casa ########################################## 2026-08-04 07:39:18 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:39:18 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:39:18 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:39:18 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:39:18 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:39:18 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:39:18 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:39:18 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-08-04 07:39:18 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:39:18 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:39:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:39:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:39:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-08-04 07:39:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-08-04 07:39:18 INFO imstat:::: Values --- 2026-08-04 07:39:18 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:39:18 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:39:18 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:39:18 INFO imstat:::: -- minimum value [min]: -7.78732e-05 Jy/beam 2026-08-04 07:39:18 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:39:18 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:39:18 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:39:18 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:39:18 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:39:18 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:39:18 INFO imstat:::: Statistics --- 2026-08-04 07:39:18 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:39:18 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:39:18 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:39:18 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:39:18 INFO imstat:::: -- Median of the pixel values [median]: -1.86516e-05 Jy/beam 2026-08-04 07:39:18 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73802e-05 Jy/beam 2026-08-04 07:39:18 INFO imstat:::: -- IQR [quartile]: 3.56959e-05 Jy/beam 2026-08-04 07:39:18 INFO imstat:::: -- First quartile [q1]: -3.45348e-05 Jy/beam 2026-08-04 07:39:18 INFO imstat:::: -- Third quartile [q3]: 1.16101e-06 Jy/beam 2026-08-04 07:39:18 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:39:18 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:39:18 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:39:18 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:39:18 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:39:18 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:39:18 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.787321e-05 4.999996e+00 2026-08-04 07:39:18 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:39:17.902433 End time: 2026-08-04 07:39:17.925450 2026-08-04 07:39:18 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:39:18 INFO imstat::::casa ########################################## 2026-08-04 07:39:18 INFO phaseshift::::casa ########################################## 2026-08-04 07:39:18 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:39:18 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 6.352706472deg' ) 2026-08-04 07:39:18 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:39:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:39:18 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:39:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:39:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:39:18 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:39:18 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:39:18 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:39:18 INFO MSTransformManager::open Select data 2026-08-04 07:39:18 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:39:20 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:39:20 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 6.352706472deg' successfully parsed 2026-08-04 07:39:20 INFO phaseshift::::casa Shift phase center 2026-08-04 07:39:21 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:39:21 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:39:17.939479 End time: 2026-08-04 07:39:20.773410 2026-08-04 07:39:21 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:39:21 INFO phaseshift::::casa ########################################## 2026-08-04 07:39:21 INFO tclean::::casa ########################################## 2026-08-04 07:39:21 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:39:21 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:39:21 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:39:21 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:39:21 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:39:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:39:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:39:21 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:39:21 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:39:21 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:39:21 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:39:21 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:39:21 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:39:21 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:39:22 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:39:22 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.0221 2026-08-04 07:39:22 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:39:22 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:39:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:39:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:39:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:39:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:39:23 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:39:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:39:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:39:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:39:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:39:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:39:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:39:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:39:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:39:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:39:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:39:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:39:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:39:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:39:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:39:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:39:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:39:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:39:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:39:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:39:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:39:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:39:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:39:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:39:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:39:31 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:39:31 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:39:31 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:39:32 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:39:33 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:39:34 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:39:20.820976 End time: 2026-08-04 07:39:33.522908 2026-08-04 07:39:34 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:39:34 INFO tclean::::casa ########################################## 2026-08-04 07:39:34 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:39:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:39:34 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:39:34 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:39:34 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:39:34 2026****** 2026-08-04 07:39:34 INFO ImageFitter::fit+ 2026-08-04 07:39:34 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:39:34 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:39:34 INFO ImageFitter::fit+ --- region: 2026-08-04 07:39:34 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:39:34 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:39:34 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:39:34 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:39:34 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:39:34 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:39:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:39:34 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:39:34 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:39:34 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:39:34 INFO imstat::::casa ########################################## 2026-08-04 07:39:34 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:39:34 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:39:34 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:39:34 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:39:34 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:39:34 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:39:34 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:39:34 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:39:34 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:39:34 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:39:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:39:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:39:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:39:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:39:34 INFO imstat:::: Values --- 2026-08-04 07:39:34 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:39:34 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:39:34 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:39:34 INFO imstat:::: -- minimum value [min]: -7.7777e-05 Jy/beam 2026-08-04 07:39:34 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:39:34 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:39:34 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:39:34 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:39:34 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:39:34 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:39:34 INFO imstat:::: Statistics --- 2026-08-04 07:39:34 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:39:34 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:39:34 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:39:34 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:39:34 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-08-04 07:39:34 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7361e-05 Jy/beam 2026-08-04 07:39:34 INFO imstat:::: -- IQR [quartile]: 3.56027e-05 Jy/beam 2026-08-04 07:39:34 INFO imstat:::: -- First quartile [q1]: -3.45074e-05 Jy/beam 2026-08-04 07:39:34 INFO imstat:::: -- Third quartile [q3]: 1.09529e-06 Jy/beam 2026-08-04 07:39:34 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:39:34 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:39:34 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:39:34 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:39:34 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:39:34 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:39:34 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777703e-05 4.999996e+00 2026-08-04 07:39:34 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:39:33.614304 End time: 2026-08-04 07:39:33.647331 2026-08-04 07:39:34 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:39:34 INFO imstat::::casa ########################################## 2026-08-04 07:39:34 INFO phaseshift::::casa ########################################## 2026-08-04 07:39:34 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:39:34 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 0.110875644rad' ) 2026-08-04 07:39:34 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:39:34 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:39:34 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:39:34 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:39:34 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:39:34 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:39:34 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:39:34 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:39:34 INFO MSTransformManager::open Select data 2026-08-04 07:39:34 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:39:37 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:39:37 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 0.110875644rad' successfully parsed 2026-08-04 07:39:37 INFO phaseshift::::casa Shift phase center 2026-08-04 07:39:37 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:39:38 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:39:33.667402 End time: 2026-08-04 07:39:37.505335 2026-08-04 07:39:38 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:39:38 INFO phaseshift::::casa ########################################## 2026-08-04 07:39:38 INFO tclean::::casa ########################################## 2026-08-04 07:39:38 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:39:38 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:39:38 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:39:38 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:39:38 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:39:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:39:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:39:38 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:39:38 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:39:38 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:39:38 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:39:38 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:39:38 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:39:38 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:39:39 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:39:39 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027884 2026-08-04 07:39:39 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:39:39 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:39:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:39:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:39:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:39:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:39:41 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:39:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:39:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:39:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:39:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:39:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:39:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:39:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:39:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:39:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:39:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:39:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:39:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:39:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:39:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:39:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:39:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:39:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:39:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:39:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:39:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:39:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:39:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:39:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:39:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:39:47 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:39:47 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:39:47 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:39:48 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:39:48 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:39:49 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:39:37.562239 End time: 2026-08-04 07:39:49.353600 2026-08-04 07:39:49 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:39:49 INFO tclean::::casa ########################################## 2026-08-04 07:39:49 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:39:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:39:49 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:39:49 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:39:49 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:39:49 2026****** 2026-08-04 07:39:49 INFO ImageFitter::fit+ 2026-08-04 07:39:49 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:39:49 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:39:49 INFO ImageFitter::fit+ --- region: 2026-08-04 07:39:49 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:39:49 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:39:49 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:39:49 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:39:49 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:39:49 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:39:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:39:49 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:39:49 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:39:49 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:39:49 INFO imstat::::casa ########################################## 2026-08-04 07:39:49 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:39:49 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:39:49 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:39:49 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:39:49 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:39:49 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:39:49 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:39:49 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:39:49 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:39:49 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:39:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:39:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:39:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:39:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:39:49 INFO imstat:::: Values --- 2026-08-04 07:39:49 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:39:49 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:39:49 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:39:49 INFO imstat:::: -- minimum value [min]: -7.77849e-05 Jy/beam 2026-08-04 07:39:49 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:39:49 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-08-04 07:39:49 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:39:49 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-08-04 07:39:49 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:39:49 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:39:49 INFO imstat:::: Statistics --- 2026-08-04 07:39:49 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:39:49 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:39:49 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:39:49 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:39:49 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-08-04 07:39:49 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73549e-05 Jy/beam 2026-08-04 07:39:49 INFO imstat:::: -- IQR [quartile]: 3.56016e-05 Jy/beam 2026-08-04 07:39:49 INFO imstat:::: -- First quartile [q1]: -3.45087e-05 Jy/beam 2026-08-04 07:39:49 INFO imstat:::: -- Third quartile [q3]: 1.0929e-06 Jy/beam 2026-08-04 07:39:49 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:39:49 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:39:49 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:39:49 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:39:49 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:39:49 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:39:49 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778491e-05 4.999996e+00 2026-08-04 07:39:49 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:39:49.440124 End time: 2026-08-04 07:39:49.470186 2026-08-04 07:39:49 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:39:49 INFO imstat::::casa ########################################## 2026-08-04 07:39:49 INFO phaseshift::::casa ########################################## 2026-08-04 07:39:49 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:39:49 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 +006d21m09.7433' ) 2026-08-04 07:39:50 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:39:50 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:39:50 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:39:50 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:39:50 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:39:50 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:39:50 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:39:50 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:39:50 INFO MSTransformManager::open Select data 2026-08-04 07:39:50 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:39:54 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:39:54 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 +006d21m09.7433' successfully parsed 2026-08-04 07:39:54 INFO phaseshift::::casa Shift phase center 2026-08-04 07:39:56 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:39:56 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:39:49.487956 End time: 2026-08-04 07:39:55.778181 2026-08-04 07:39:56 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:39:56 INFO phaseshift::::casa ########################################## 2026-08-04 07:39:56 INFO tclean::::casa ########################################## 2026-08-04 07:39:56 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:39:56 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:39:56 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:39:56 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:39:56 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:39:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:39:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:39:56 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:39:56 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:39:56 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:39:56 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.51 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:39:56 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:39:56 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:39:56 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:39:58 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:39:58 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027575 2026-08-04 07:39:58 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:39:58 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:39:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:39:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:39:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:39:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:39:59 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:39:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:39:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:40:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:40:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:40:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:40:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:40:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:40:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:40:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:40:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:40:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:40:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:40:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:40:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:40:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:40:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:40:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:40:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:40:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:40:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:40:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:40:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:40:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:40:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:40:09 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:40:09 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:40:09 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:40:10 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:40:10 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:40:11 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:39:55.837219 End time: 2026-08-04 07:40:11.101156 2026-08-04 07:40:11 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:40:11 INFO tclean::::casa ########################################## 2026-08-04 07:40:11 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:40:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:40:11 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:40:11 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:40:11 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:40:11 2026****** 2026-08-04 07:40:11 INFO ImageFitter::fit+ 2026-08-04 07:40:11 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:40:11 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:40:11 INFO ImageFitter::fit+ --- region: 2026-08-04 07:40:11 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:40:11 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:40:11 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:40:11 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:40:11 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:40:11 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:40:11 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:40:11 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:40:11 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:40:11 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:40:11 INFO imstat::::casa ########################################## 2026-08-04 07:40:11 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:40:11 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:40:11 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:40:11 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:40:11 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:40:11 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:40:11 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:40:11 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:40:11 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:40:11 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:40:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:40:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:40:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:40:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:40:11 INFO imstat:::: Values --- 2026-08-04 07:40:11 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:40:11 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:40:11 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:40:11 INFO imstat:::: -- minimum value [min]: -7.77795e-05 Jy/beam 2026-08-04 07:40:11 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:40:11 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:40:11 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:40:11 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:40:11 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:40:11 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:40:11 INFO imstat:::: Statistics --- 2026-08-04 07:40:11 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:40:11 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:40:11 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:40:11 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:40:11 INFO imstat:::: -- Median of the pixel values [median]: -1.86702e-05 Jy/beam 2026-08-04 07:40:11 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73612e-05 Jy/beam 2026-08-04 07:40:11 INFO imstat:::: -- IQR [quartile]: 3.56029e-05 Jy/beam 2026-08-04 07:40:11 INFO imstat:::: -- First quartile [q1]: -3.45082e-05 Jy/beam 2026-08-04 07:40:11 INFO imstat:::: -- Third quartile [q3]: 1.09472e-06 Jy/beam 2026-08-04 07:40:11 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:40:11 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:40:11 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:40:11 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:40:11 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:40:11 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:40:11 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777946e-05 4.999996e+00 2026-08-04 07:40:11 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:40:11.172279 End time: 2026-08-04 07:40:11.196912 2026-08-04 07:40:11 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:40:11 INFO imstat::::casa ########################################## 2026-08-04 07:40:11 INFO phaseshift::::casa ########################################## 2026-08-04 07:40:11 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:40:11 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 00:25:24.6496' ) 2026-08-04 07:40:11 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:40:11 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:40:11 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:40:11 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:40:11 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:40:11 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:40:11 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:40:11 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:40:11 INFO MSTransformManager::open Select data 2026-08-04 07:40:11 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:40:14 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-08-04 07:40:14 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 00:25:24.6496' successfully parsed 2026-08-04 07:40:14 INFO phaseshift::::casa Shift phase center 2026-08-04 07:40:16 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:40:16 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:40:11.212675 End time: 2026-08-04 07:40:15.877363 2026-08-04 07:40:16 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:40:16 INFO phaseshift::::casa ########################################## 2026-08-04 07:40:16 INFO tclean::::casa ########################################## 2026-08-04 07:40:16 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:40:16 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:40:16 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:40:16 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:40:16 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:40:16 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:40:16 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:40:16 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:40:16 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:40:16 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:40:16 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.51 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:40:16 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:40:16 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:40:16 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:40:18 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:40:19 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028057 2026-08-04 07:40:19 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:40:19 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:40:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:40:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:40:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:40:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:40:23 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:40:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:40:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:40:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:40:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:40:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:40:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:40:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:40:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:40:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:40:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:40:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:40:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:40:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:40:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:40:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:40:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:40:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:40:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:40:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:40:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:40:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:40:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:40:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:40:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:40:31 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:40:31 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:40:31 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:40:31 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:40:32 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:40:33 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:40:15.934778 End time: 2026-08-04 07:40:33.268249 2026-08-04 07:40:33 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:40:33 INFO tclean::::casa ########################################## 2026-08-04 07:40:33 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:40:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:40:33 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:40:33 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:40:33 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:40:33 2026****** 2026-08-04 07:40:33 INFO ImageFitter::fit+ 2026-08-04 07:40:33 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:40:33 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:40:33 INFO ImageFitter::fit+ --- region: 2026-08-04 07:40:33 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:40:33 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:40:33 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:40:33 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:40:33 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:40:33 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:40:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:40:33 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:40:33 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116907 Jy 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:40:33 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:40:33 INFO imstat::::casa ########################################## 2026-08-04 07:40:33 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:40:33 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:40:33 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:40:33 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:40:33 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:40:33 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:40:33 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:40:33 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-08-04 07:40:33 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:40:33 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:40:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:40:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:40:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-08-04 07:40:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-08-04 07:40:33 INFO imstat:::: Values --- 2026-08-04 07:40:33 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:40:33 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:40:33 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:40:33 INFO imstat:::: -- minimum value [min]: -7.78732e-05 Jy/beam 2026-08-04 07:40:33 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:40:33 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:40:33 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:40:33 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:40:33 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:40:33 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:40:33 INFO imstat:::: Statistics --- 2026-08-04 07:40:33 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:40:33 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:40:33 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:40:33 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:40:33 INFO imstat:::: -- Median of the pixel values [median]: -1.86516e-05 Jy/beam 2026-08-04 07:40:33 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73802e-05 Jy/beam 2026-08-04 07:40:33 INFO imstat:::: -- IQR [quartile]: 3.56959e-05 Jy/beam 2026-08-04 07:40:33 INFO imstat:::: -- First quartile [q1]: -3.45348e-05 Jy/beam 2026-08-04 07:40:33 INFO imstat:::: -- Third quartile [q3]: 1.16101e-06 Jy/beam 2026-08-04 07:40:33 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:40:33 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:40:33 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:40:33 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:40:33 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:40:33 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:40:33 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.787321e-05 4.999996e+00 2026-08-04 07:40:33 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:40:33.347101 End time: 2026-08-04 07:40:33.383973 2026-08-04 07:40:33 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:40:33 INFO imstat::::casa ########################################## 2026-08-04 07:40:33 INFO phaseshift::::casa ########################################## 2026-08-04 07:40:33 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:40:33 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 6.352706472deg' ) 2026-08-04 07:40:33 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:40:33 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:40:33 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:40:33 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:40:33 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:40:33 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:40:33 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:40:33 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:40:33 INFO MSTransformManager::open Select data 2026-08-04 07:40:33 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:40:38 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:40:38 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 6.352706472deg' successfully parsed 2026-08-04 07:40:38 INFO phaseshift::::casa Shift phase center 2026-08-04 07:40:39 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:40:39 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:40:33.400459 End time: 2026-08-04 07:40:38.720370 2026-08-04 07:40:39 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:40:39 INFO phaseshift::::casa ########################################## 2026-08-04 07:40:39 INFO tclean::::casa ########################################## 2026-08-04 07:40:39 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:40:39 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:40:39 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:40:39 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:40:39 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:40:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:40:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:40:39 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:40:39 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:40:39 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:40:39 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.51 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:40:39 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:40:39 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:40:39 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:40:40 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:40:40 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027522 2026-08-04 07:40:40 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:40:40 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:40:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:40:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:40:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:40:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:40:42 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:40:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:40:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:40:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:40:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:40:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:40:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:40:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:40:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:40:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:40:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:40:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:40:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:40:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:40:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:40:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:40:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:40:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:40:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:40:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:40:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:40:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:40:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:40:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:40:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:40:50 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:40:50 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:40:50 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:40:51 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:40:51 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:40:53 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:40:38.780323 End time: 2026-08-04 07:40:53.212238 2026-08-04 07:40:53 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:40:53 INFO tclean::::casa ########################################## 2026-08-04 07:40:53 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:40:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:40:53 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:40:53 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:40:53 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:40:53 2026****** 2026-08-04 07:40:53 INFO ImageFitter::fit+ 2026-08-04 07:40:53 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:40:53 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:40:53 INFO ImageFitter::fit+ --- region: 2026-08-04 07:40:53 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:40:53 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:40:53 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:40:53 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:40:53 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:40:53 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:40:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:40:53 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:40:53 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:40:53 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:40:53 INFO imstat::::casa ########################################## 2026-08-04 07:40:53 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:40:53 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:40:53 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:40:53 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:40:53 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:40:53 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:40:53 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:40:53 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:40:53 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:40:53 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:40:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:40:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:40:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:40:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:40:53 INFO imstat:::: Values --- 2026-08-04 07:40:53 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:40:53 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:40:53 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:40:53 INFO imstat:::: -- minimum value [min]: -7.7777e-05 Jy/beam 2026-08-04 07:40:53 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:40:53 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:40:53 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:40:53 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:40:53 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:40:53 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:40:53 INFO imstat:::: Statistics --- 2026-08-04 07:40:53 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:40:53 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:40:53 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:40:53 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:40:53 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-08-04 07:40:53 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7361e-05 Jy/beam 2026-08-04 07:40:53 INFO imstat:::: -- IQR [quartile]: 3.56027e-05 Jy/beam 2026-08-04 07:40:53 INFO imstat:::: -- First quartile [q1]: -3.45074e-05 Jy/beam 2026-08-04 07:40:53 INFO imstat:::: -- Third quartile [q3]: 1.09529e-06 Jy/beam 2026-08-04 07:40:53 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:40:53 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:40:53 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:40:53 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:40:53 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:40:53 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:40:53 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777703e-05 4.999996e+00 2026-08-04 07:40:53 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:40:53.294212 End time: 2026-08-04 07:40:53.320573 2026-08-04 07:40:53 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:40:53 INFO imstat::::casa ########################################## 2026-08-04 07:40:53 INFO phaseshift::::casa ########################################## 2026-08-04 07:40:53 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:40:53 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 0.110875644rad' ) 2026-08-04 07:40:53 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:40:53 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:40:53 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:40:53 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:40:53 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:40:53 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:40:53 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:40:53 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:40:53 INFO MSTransformManager::open Select data 2026-08-04 07:40:53 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:40:57 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:40:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 0.110875644rad' successfully parsed 2026-08-04 07:40:57 INFO phaseshift::::casa Shift phase center 2026-08-04 07:40:59 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:40:59 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:40:53.337208 End time: 2026-08-04 07:40:58.704347 2026-08-04 07:40:59 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:40:59 INFO phaseshift::::casa ########################################## 2026-08-04 07:40:59 INFO tclean::::casa ########################################## 2026-08-04 07:40:59 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:40:59 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:40:59 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:40:59 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:40:59 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:40:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:40:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:40:59 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:40:59 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:40:59 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:40:59 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.51 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:40:59 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:40:59 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:40:59 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:41:01 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:41:02 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028301 2026-08-04 07:41:02 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:41:02 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:41:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:41:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:41:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:41:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:41:05 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:41:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:41:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:41:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:41:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:41:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:41:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:41:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:41:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:41:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:41:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:41:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:41:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:41:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:41:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:41:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:41:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:41:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:41:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:41:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:41:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:41:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:41:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:41:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:41:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:41:16 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:41:16 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:41:16 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:41:17 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:41:17 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:41:19 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:40:58.770192 End time: 2026-08-04 07:41:19.235875 2026-08-04 07:41:19 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:41:19 INFO tclean::::casa ########################################## 2026-08-04 07:41:19 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:41:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:41:19 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:41:19 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:41:19 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:41:19 2026****** 2026-08-04 07:41:19 INFO ImageFitter::fit+ 2026-08-04 07:41:19 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:41:19 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:41:19 INFO ImageFitter::fit+ --- region: 2026-08-04 07:41:19 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:41:19 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:41:19 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:41:19 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:41:19 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:41:19 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:41:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:41:19 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:41:19 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:41:19 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:41:19 INFO imstat::::casa ########################################## 2026-08-04 07:41:19 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:41:19 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:41:19 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:41:19 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:41:19 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:41:19 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:41:19 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:41:19 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:41:19 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:41:19 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:41:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:41:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:41:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:41:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:41:19 INFO imstat:::: Values --- 2026-08-04 07:41:19 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:41:19 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:41:19 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:41:19 INFO imstat:::: -- minimum value [min]: -7.77849e-05 Jy/beam 2026-08-04 07:41:19 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:41:19 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-08-04 07:41:19 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:41:19 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-08-04 07:41:19 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:41:19 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:41:19 INFO imstat:::: Statistics --- 2026-08-04 07:41:19 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:41:19 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:41:19 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:41:19 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:41:19 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-08-04 07:41:19 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73549e-05 Jy/beam 2026-08-04 07:41:19 INFO imstat:::: -- IQR [quartile]: 3.56016e-05 Jy/beam 2026-08-04 07:41:19 INFO imstat:::: -- First quartile [q1]: -3.45087e-05 Jy/beam 2026-08-04 07:41:19 INFO imstat:::: -- Third quartile [q3]: 1.0929e-06 Jy/beam 2026-08-04 07:41:19 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:41:19 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:41:19 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:41:19 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:41:19 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:41:19 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:41:19 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778491e-05 4.999996e+00 2026-08-04 07:41:19 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:41:19.316593 End time: 2026-08-04 07:41:19.344081 2026-08-04 07:41:19 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:41:19 INFO imstat::::casa ########################################## 2026-08-04 07:41:19 INFO phaseshift::::casa ########################################## 2026-08-04 07:41:19 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:41:19 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg +006d21m09.7433' ) 2026-08-04 07:41:19 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:41:19 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:41:19 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:41:19 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:41:19 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:41:19 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:41:19 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:41:19 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:41:19 INFO MSTransformManager::open Select data 2026-08-04 07:41:19 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:41:24 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:41:24 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg +006d21m09.7433' successfully parsed 2026-08-04 07:41:24 INFO phaseshift::::casa Shift phase center 2026-08-04 07:41:26 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:41:26 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:41:19.361552 End time: 2026-08-04 07:41:26.008238 2026-08-04 07:41:26 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:41:26 INFO phaseshift::::casa ########################################## 2026-08-04 07:41:26 INFO tclean::::casa ########################################## 2026-08-04 07:41:26 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:41:26 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:41:26 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:41:26 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:41:26 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:41:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:41:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:41:26 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:41:26 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:41:26 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:41:26 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.51 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:41:26 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:41:26 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:41:26 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:41:28 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:41:28 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027713 2026-08-04 07:41:28 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:41:28 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:41:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:41:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:41:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:41:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:41:31 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:41:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:41:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:41:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:41:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:41:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:41:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:41:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:41:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:41:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:41:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:41:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:41:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:41:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:41:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:41:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:41:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:41:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:41:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:41:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:41:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:41:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:41:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:41:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:41:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:41:41 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:41:41 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:41:41 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:41:45 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:41:45 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:41:48 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:41:26.062524 End time: 2026-08-04 07:41:47.906687 2026-08-04 07:41:48 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:41:48 INFO tclean::::casa ########################################## 2026-08-04 07:41:48 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:41:48 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:41:48 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:41:48 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:41:48 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:41:48 2026****** 2026-08-04 07:41:48 INFO ImageFitter::fit+ 2026-08-04 07:41:48 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:41:48 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:41:48 INFO ImageFitter::fit+ --- region: 2026-08-04 07:41:48 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:41:48 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:41:48 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:41:48 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:41:48 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:41:48 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:41:48 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:41:48 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:41:48 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116867 Jy 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126483 Jy 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ --- dec: 127.999996 +/- 0.000097 pixels 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:41:48 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:41:48 INFO imstat::::casa ########################################## 2026-08-04 07:41:48 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:41:48 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:41:48 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:41:48 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:41:48 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:41:48 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:41:48 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:41:48 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:41:48 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:41:48 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:41:48 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:41:48 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:41:48 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:41:48 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:41:48 INFO imstat:::: Values --- 2026-08-04 07:41:48 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:41:48 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:41:48 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:41:48 INFO imstat:::: -- minimum value [min]: -7.77768e-05 Jy/beam 2026-08-04 07:41:48 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:41:48 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:41:48 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:41:48 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:41:48 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:41:48 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:41:48 INFO imstat:::: Statistics --- 2026-08-04 07:41:48 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:41:48 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:41:48 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:41:48 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:41:48 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-08-04 07:41:48 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73609e-05 Jy/beam 2026-08-04 07:41:48 INFO imstat:::: -- IQR [quartile]: 3.56013e-05 Jy/beam 2026-08-04 07:41:48 INFO imstat:::: -- First quartile [q1]: -3.4507e-05 Jy/beam 2026-08-04 07:41:48 INFO imstat:::: -- Third quartile [q3]: 1.09435e-06 Jy/beam 2026-08-04 07:41:48 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:41:48 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:41:48 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:41:48 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:41:48 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:41:48 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:41:48 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777678e-05 4.999996e+00 2026-08-04 07:41:48 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:41:47.977927 End time: 2026-08-04 07:41:48.004320 2026-08-04 07:41:48 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:41:48 INFO imstat::::casa ########################################## 2026-08-04 07:41:48 INFO phaseshift::::casa ########################################## 2026-08-04 07:41:48 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:41:48 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 00:25:24.6496' ) 2026-08-04 07:41:48 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:41:48 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:41:48 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:41:48 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:41:48 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:41:48 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:41:48 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:41:48 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:41:48 INFO MSTransformManager::open Select data 2026-08-04 07:41:48 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:41:53 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-08-04 07:41:53 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 00:25:24.6496' successfully parsed 2026-08-04 07:41:53 INFO phaseshift::::casa Shift phase center 2026-08-04 07:41:55 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:41:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:41:48.026438 End time: 2026-08-04 07:41:54.773043 2026-08-04 07:41:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:41:55 INFO phaseshift::::casa ########################################## 2026-08-04 07:41:55 INFO tclean::::casa ########################################## 2026-08-04 07:41:55 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:41:55 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:41:55 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:41:55 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:41:55 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:41:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:41:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:41:55 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:41:55 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:41:55 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:41:55 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:41:55 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:41:55 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:41:55 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:41:57 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:41:57 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028103 2026-08-04 07:41:57 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:41:57 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:41:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:41:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:42:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:42:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:42:00 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:42:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:42:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:42:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:42:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:42:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:42:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:42:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:42:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:42:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:42:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:42:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:42:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:42:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:42:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:42:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:42:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:42:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:42:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:42:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:42:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:42:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:42:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:42:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:42:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:42:11 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:42:11 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:42:11 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:42:11 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:42:12 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:42:13 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:41:54.838536 End time: 2026-08-04 07:42:12.988335 2026-08-04 07:42:13 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:42:13 INFO tclean::::casa ########################################## 2026-08-04 07:42:13 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:42:13 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:42:13 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:42:13 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:42:13 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:42:13 2026****** 2026-08-04 07:42:13 INFO ImageFitter::fit+ 2026-08-04 07:42:13 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:42:13 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:42:13 INFO ImageFitter::fit+ --- region: 2026-08-04 07:42:13 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:42:13 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:42:13 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:42:13 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:42:13 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:42:13 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:42:13 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:42:13 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:42:13 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116903 Jy 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126517 Jy 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:42:13 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:42:13 INFO imstat::::casa ########################################## 2026-08-04 07:42:13 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:42:13 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:42:13 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:42:13 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:42:13 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:42:13 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:42:13 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:42:13 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-08-04 07:42:13 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:42:13 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:42:13 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:42:13 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:42:13 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-08-04 07:42:13 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-08-04 07:42:13 INFO imstat:::: Values --- 2026-08-04 07:42:13 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:42:13 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:42:13 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:42:13 INFO imstat:::: -- minimum value [min]: -7.78731e-05 Jy/beam 2026-08-04 07:42:13 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:42:13 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:42:13 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:42:13 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:42:13 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:42:13 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:42:13 INFO imstat:::: Statistics --- 2026-08-04 07:42:13 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:42:13 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:42:13 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:42:13 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:42:13 INFO imstat:::: -- Median of the pixel values [median]: -1.86503e-05 Jy/beam 2026-08-04 07:42:13 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73798e-05 Jy/beam 2026-08-04 07:42:13 INFO imstat:::: -- IQR [quartile]: 3.56966e-05 Jy/beam 2026-08-04 07:42:13 INFO imstat:::: -- First quartile [q1]: -3.45352e-05 Jy/beam 2026-08-04 07:42:13 INFO imstat:::: -- Third quartile [q3]: 1.16146e-06 Jy/beam 2026-08-04 07:42:13 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:42:13 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:42:13 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:42:13 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:42:13 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:42:13 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:42:13 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.787306e-05 4.999996e+00 2026-08-04 07:42:13 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:42:13.059745 End time: 2026-08-04 07:42:13.084172 2026-08-04 07:42:13 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:42:13 INFO imstat::::casa ########################################## 2026-08-04 07:42:13 INFO phaseshift::::casa ########################################## 2026-08-04 07:42:13 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:42:13 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 6.352706472deg' ) 2026-08-04 07:42:13 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:42:13 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:42:13 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:42:13 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:42:13 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:42:13 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:42:13 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:42:13 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:42:13 INFO MSTransformManager::open Select data 2026-08-04 07:42:13 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:42:20 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:42:20 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 6.352706472deg' successfully parsed 2026-08-04 07:42:20 INFO phaseshift::::casa Shift phase center 2026-08-04 07:42:21 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:42:21 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:42:13.099141 End time: 2026-08-04 07:42:21.164659 2026-08-04 07:42:21 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:42:21 INFO phaseshift::::casa ########################################## 2026-08-04 07:42:21 INFO tclean::::casa ########################################## 2026-08-04 07:42:21 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:42:21 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:42:21 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:42:21 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:42:21 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:42:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:42:21 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:42:21 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:42:21 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:42:21 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:42:21 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:42:21 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:42:21 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:42:21 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:42:23 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:42:23 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022492 2026-08-04 07:42:23 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:42:23 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:42:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:42:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:42:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:42:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:42:25 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:42:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:42:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:42:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:42:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:42:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:42:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:42:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:42:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:42:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:42:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:42:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:42:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:42:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:42:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:42:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:42:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:42:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:42:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:42:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:42:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:42:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:42:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:42:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:42:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:42:33 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:42:33 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:42:33 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:42:34 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:42:34 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:42:36 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:42:21.222904 End time: 2026-08-04 07:42:35.644228 2026-08-04 07:42:36 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:42:36 INFO tclean::::casa ########################################## 2026-08-04 07:42:36 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:42:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:42:36 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:42:36 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:42:36 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:42:36 2026****** 2026-08-04 07:42:36 INFO ImageFitter::fit+ 2026-08-04 07:42:36 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:42:36 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:42:36 INFO ImageFitter::fit+ --- region: 2026-08-04 07:42:36 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:42:36 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:42:36 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:42:36 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:42:36 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:42:36 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:42:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:42:36 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:42:36 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011687 Jy 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ --- dec: 127.999996 +/- 0.000097 pixels 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:42:36 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:42:36 INFO imstat::::casa ########################################## 2026-08-04 07:42:36 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:42:36 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:42:36 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:42:36 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:42:36 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:42:36 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:42:36 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:42:36 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:42:36 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:42:36 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:42:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:42:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:42:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:42:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:42:36 INFO imstat:::: Values --- 2026-08-04 07:42:36 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:42:36 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:42:36 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:42:36 INFO imstat:::: -- minimum value [min]: -7.77771e-05 Jy/beam 2026-08-04 07:42:36 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:42:36 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:42:36 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:42:36 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:42:36 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:42:36 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:42:36 INFO imstat:::: Statistics --- 2026-08-04 07:42:36 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:42:36 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:42:36 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:42:36 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:42:36 INFO imstat:::: -- Median of the pixel values [median]: -1.86715e-05 Jy/beam 2026-08-04 07:42:36 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73619e-05 Jy/beam 2026-08-04 07:42:36 INFO imstat:::: -- IQR [quartile]: 3.56021e-05 Jy/beam 2026-08-04 07:42:36 INFO imstat:::: -- First quartile [q1]: -3.45061e-05 Jy/beam 2026-08-04 07:42:36 INFO imstat:::: -- Third quartile [q3]: 1.09605e-06 Jy/beam 2026-08-04 07:42:36 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:42:36 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:42:36 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:42:36 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:42:36 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:42:36 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:42:36 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777705e-05 4.999996e+00 2026-08-04 07:42:36 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:42:35.730833 End time: 2026-08-04 07:42:35.760686 2026-08-04 07:42:36 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:42:36 INFO imstat::::casa ########################################## 2026-08-04 07:42:36 INFO phaseshift::::casa ########################################## 2026-08-04 07:42:36 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:42:36 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 0.110875644rad' ) 2026-08-04 07:42:36 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:42:36 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:42:36 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:42:36 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:42:36 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:42:36 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:42:36 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:42:36 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:42:36 INFO MSTransformManager::open Select data 2026-08-04 07:42:36 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:42:39 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:42:39 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 0.110875644rad' successfully parsed 2026-08-04 07:42:39 INFO phaseshift::::casa Shift phase center 2026-08-04 07:42:40 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:42:40 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:42:35.785466 End time: 2026-08-04 07:42:40.463430 2026-08-04 07:42:40 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:42:40 INFO phaseshift::::casa ########################################## 2026-08-04 07:42:41 INFO tclean::::casa ########################################## 2026-08-04 07:42:41 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:42:41 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:42:41 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:42:41 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:42:41 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:42:41 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:42:41 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:42:41 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:42:41 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:42:41 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:42:41 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:42:41 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:42:41 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:42:41 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:42:43 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:42:43 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021136 2026-08-04 07:42:43 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:42:43 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:42:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:42:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:42:46 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:42:46 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:42:46 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:42:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:42:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:42:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:42:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:42:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:42:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:42:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:42:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:42:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:42:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:42:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:42:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:42:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:42:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:42:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:42:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:42:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:42:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:42:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:42:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:42:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:42:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:42:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:42:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:42:55 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:42:55 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:42:55 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:42:56 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:42:57 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:42:58 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:42:40.524413 End time: 2026-08-04 07:42:58.277435 2026-08-04 07:42:58 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:42:58 INFO tclean::::casa ########################################## 2026-08-04 07:42:58 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:42:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:42:58 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:42:58 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:42:58 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:42:58 2026****** 2026-08-04 07:42:58 INFO ImageFitter::fit+ 2026-08-04 07:42:58 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:42:58 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:42:58 INFO ImageFitter::fit+ --- region: 2026-08-04 07:42:58 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:42:58 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:42:58 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:42:58 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:42:58 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:42:58 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:42:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:42:58 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:42:58 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126482 Jy 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:42:58 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:42:58 INFO imstat::::casa ########################################## 2026-08-04 07:42:58 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:42:58 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:42:58 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:42:58 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:42:58 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:42:58 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:42:58 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:42:58 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:42:58 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:42:58 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:42:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:42:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:42:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:42:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:42:58 INFO imstat:::: Values --- 2026-08-04 07:42:58 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:42:58 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:42:58 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:42:58 INFO imstat:::: -- minimum value [min]: -7.77855e-05 Jy/beam 2026-08-04 07:42:58 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:42:58 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-08-04 07:42:58 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:42:58 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-08-04 07:42:58 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:42:58 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:42:58 INFO imstat:::: Statistics --- 2026-08-04 07:42:58 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:42:58 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:42:58 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:42:58 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:42:58 INFO imstat:::: -- Median of the pixel values [median]: -1.86732e-05 Jy/beam 2026-08-04 07:42:58 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73562e-05 Jy/beam 2026-08-04 07:42:58 INFO imstat:::: -- IQR [quartile]: 3.56008e-05 Jy/beam 2026-08-04 07:42:58 INFO imstat:::: -- First quartile [q1]: -3.45107e-05 Jy/beam 2026-08-04 07:42:58 INFO imstat:::: -- Third quartile [q3]: 1.09015e-06 Jy/beam 2026-08-04 07:42:58 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:42:58 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:42:58 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:42:58 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:42:58 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:42:58 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:42:58 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778549e-05 4.999996e+00 2026-08-04 07:42:58 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:42:58.357665 End time: 2026-08-04 07:42:58.395704 2026-08-04 07:42:58 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:42:58 INFO imstat::::casa ########################################## 2026-08-04 07:42:58 INFO phaseshift::::casa ########################################## 2026-08-04 07:42:58 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:42:58 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad +006d21m09.7433' ) 2026-08-04 07:42:58 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:42:58 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:42:58 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:42:58 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:42:58 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:42:58 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:42:58 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:42:58 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:42:58 INFO MSTransformManager::open Select data 2026-08-04 07:42:58 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:43:02 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:43:02 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad +006d21m09.7433' successfully parsed 2026-08-04 07:43:02 INFO phaseshift::::casa Shift phase center 2026-08-04 07:43:03 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:43:03 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:42:58.411785 End time: 2026-08-04 07:43:02.951196 2026-08-04 07:43:03 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:43:03 INFO phaseshift::::casa ########################################## 2026-08-04 07:43:03 INFO tclean::::casa ########################################## 2026-08-04 07:43:03 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:43:03 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:43:03 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:43:03 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:43:03 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:43:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:43:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:43:03 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:43:03 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:43:03 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:43:03 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:43:03 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:43:03 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:43:03 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:43:04 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:43:04 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023237 2026-08-04 07:43:04 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:43:04 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:43:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:43:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:43:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:43:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:43:08 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:43:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:43:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:43:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:43:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:43:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:43:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:43:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:43:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:43:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:43:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:43:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:43:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:43:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:43:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:43:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:43:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:43:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:43:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:43:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:43:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:43:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:43:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:43:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:43:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:43:15 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:43:15 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:43:15 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:43:16 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:43:17 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:43:19 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:43:03.008615 End time: 2026-08-04 07:43:19.145167 2026-08-04 07:43:19 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:43:19 INFO tclean::::casa ########################################## 2026-08-04 07:43:19 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:43:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:43:19 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:43:19 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:43:19 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:43:19 2026****** 2026-08-04 07:43:19 INFO ImageFitter::fit+ 2026-08-04 07:43:19 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:43:19 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:43:19 INFO ImageFitter::fit+ --- region: 2026-08-04 07:43:19 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:43:19 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:43:19 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:43:19 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:43:19 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:43:19 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:43:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:43:19 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:43:19 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000006 +/- 0.000777 arcsec 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ --- ra: 128.000007 +/- 0.000127 pixels 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ --- dec: 127.999994 +/- 0.000097 pixels 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:43:19 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:43:19 INFO imstat::::casa ########################################## 2026-08-04 07:43:19 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:43:19 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:43:19 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:43:19 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:43:19 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:43:19 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:43:19 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:43:19 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:43:19 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:43:19 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:43:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:43:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:43:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:43:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:43:19 INFO imstat:::: Values --- 2026-08-04 07:43:19 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:43:19 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:43:19 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:43:19 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-08-04 07:43:19 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:43:19 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:43:19 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:43:19 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:43:19 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:43:19 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:43:19 INFO imstat:::: Statistics --- 2026-08-04 07:43:19 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:43:19 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:43:19 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:43:19 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:43:19 INFO imstat:::: -- Median of the pixel values [median]: -1.86669e-05 Jy/beam 2026-08-04 07:43:19 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73635e-05 Jy/beam 2026-08-04 07:43:19 INFO imstat:::: -- IQR [quartile]: 3.56081e-05 Jy/beam 2026-08-04 07:43:19 INFO imstat:::: -- First quartile [q1]: -3.45085e-05 Jy/beam 2026-08-04 07:43:19 INFO imstat:::: -- Third quartile [q3]: 1.09959e-06 Jy/beam 2026-08-04 07:43:19 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:43:19 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:43:19 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:43:19 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:43:19 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:43:19 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:43:19 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778013e-05 4.999996e+00 2026-08-04 07:43:19 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:43:19.218975 End time: 2026-08-04 07:43:19.245215 2026-08-04 07:43:19 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:43:19 INFO imstat::::casa ########################################## 2026-08-04 07:43:19 INFO phaseshift::::casa ########################################## 2026-08-04 07:43:19 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:43:19 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 00:25:24.6496' ) 2026-08-04 07:43:19 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:43:19 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:43:19 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:43:19 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:43:19 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:43:19 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:43:19 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:43:19 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:43:19 INFO MSTransformManager::open Select data 2026-08-04 07:43:19 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:43:24 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "00:25:24.6496" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-08-04 07:43:24 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 00:25:24.6496' successfully parsed 2026-08-04 07:43:24 INFO phaseshift::::casa Shift phase center 2026-08-04 07:43:24 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:43:24 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:43:19.261651 End time: 2026-08-04 07:43:24.392938 2026-08-04 07:43:24 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:43:24 INFO phaseshift::::casa ########################################## 2026-08-04 07:43:24 INFO tclean::::casa ########################################## 2026-08-04 07:43:24 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:43:24 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:43:24 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:43:24 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:43:24 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:43:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:43:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:43:25 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:43:25 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:43:25 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:43:25 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:43:25 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:43:25 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:43:25 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:43:26 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:43:26 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025107 2026-08-04 07:43:26 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:43:26 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:43:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:43:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:43:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:43:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:43:28 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:43:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:43:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:43:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:43:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:43:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:43:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:43:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:43:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:43:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:43:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:43:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:43:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:43:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:43:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:43:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:43:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:43:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:43:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:43:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:43:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:43:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:43:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:43:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:43:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:43:38 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:43:38 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:43:38 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:43:39 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:43:39 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:43:40 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:43:24.449080 End time: 2026-08-04 07:43:40.468397 2026-08-04 07:43:40 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:43:40 INFO tclean::::casa ########################################## 2026-08-04 07:43:40 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:43:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:43:41 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:43:41 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:43:41 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:43:41 2026****** 2026-08-04 07:43:41 INFO ImageFitter::fit+ 2026-08-04 07:43:41 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:43:41 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:43:41 INFO ImageFitter::fit+ --- region: 2026-08-04 07:43:41 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:43:41 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:43:41 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:43:41 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:43:41 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:43:41 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:43:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:43:41 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:43:41 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116905 Jy 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000041 +/- 0.000777 arcsec 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ --- ra: 127.999941 +/- 0.000127 pixels 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ --- dec: 127.999954 +/- 0.000097 pixels 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:43:41 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:43:41 INFO imstat::::casa ########################################## 2026-08-04 07:43:41 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:43:41 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:43:41 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:43:41 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:43:41 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:43:41 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:43:41 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:43:41 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-08-04 07:43:41 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:43:41 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:43:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:43:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:43:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-08-04 07:43:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-08-04 07:43:41 INFO imstat:::: Values --- 2026-08-04 07:43:41 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:43:41 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:43:41 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:43:41 INFO imstat:::: -- minimum value [min]: -7.78774e-05 Jy/beam 2026-08-04 07:43:41 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:43:41 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:43:41 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:43:41 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:43:41 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:43:41 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:43:41 INFO imstat:::: Statistics --- 2026-08-04 07:43:41 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:43:41 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:43:41 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:43:41 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:43:41 INFO imstat:::: -- Median of the pixel values [median]: -1.86532e-05 Jy/beam 2026-08-04 07:43:41 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73779e-05 Jy/beam 2026-08-04 07:43:41 INFO imstat:::: -- IQR [quartile]: 3.5701e-05 Jy/beam 2026-08-04 07:43:41 INFO imstat:::: -- First quartile [q1]: -3.45356e-05 Jy/beam 2026-08-04 07:43:41 INFO imstat:::: -- Third quartile [q3]: 1.16544e-06 Jy/beam 2026-08-04 07:43:41 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:43:41 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:43:41 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:43:41 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:43:41 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:43:41 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:43:41 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.787745e-05 4.999996e+00 2026-08-04 07:43:41 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:43:40.547880 End time: 2026-08-04 07:43:40.580817 2026-08-04 07:43:41 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:43:41 INFO imstat::::casa ########################################## 2026-08-04 07:43:41 INFO phaseshift::::casa ########################################## 2026-08-04 07:43:41 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:43:41 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 6.352706472deg' ) 2026-08-04 07:43:41 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:43:41 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:43:41 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:43:41 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:43:41 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:43:41 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:43:41 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:43:41 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:43:41 INFO MSTransformManager::open Select data 2026-08-04 07:43:41 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:43:44 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:43:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 6.352706472deg' successfully parsed 2026-08-04 07:43:44 INFO phaseshift::::casa Shift phase center 2026-08-04 07:43:45 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:43:45 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:43:40.605891 End time: 2026-08-04 07:43:44.782189 2026-08-04 07:43:45 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:43:45 INFO phaseshift::::casa ########################################## 2026-08-04 07:43:45 INFO tclean::::casa ########################################## 2026-08-04 07:43:45 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:43:45 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:43:45 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:43:45 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:43:45 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:43:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:43:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:43:45 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:43:45 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:43:45 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:43:45 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:43:45 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:43:45 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:43:45 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:43:46 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:43:46 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026689 2026-08-04 07:43:46 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:43:46 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:43:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:43:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:43:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:43:48 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:43:48 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:43:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:43:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:43:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:43:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:43:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:43:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:43:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:43:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:43:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:43:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:43:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:43:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:43:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:43:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:43:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:43:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:43:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:43:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:43:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:43:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:43:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:43:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:43:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:43:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:43:55 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:43:55 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:43:55 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:43:58 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:43:59 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:44:01 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:43:44.837946 End time: 2026-08-04 07:44:00.569813 2026-08-04 07:44:01 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:44:01 INFO tclean::::casa ########################################## 2026-08-04 07:44:01 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:44:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:44:01 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:44:01 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:44:01 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:44:01 2026****** 2026-08-04 07:44:01 INFO ImageFitter::fit+ 2026-08-04 07:44:01 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:44:01 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:44:01 INFO ImageFitter::fit+ --- region: 2026-08-04 07:44:01 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:44:01 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:44:01 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:44:01 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:44:01 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:44:01 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:44:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:44:01 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:44:01 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000006 +/- 0.000777 arcsec 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ --- ra: 128.000007 +/- 0.000127 pixels 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ --- dec: 127.999994 +/- 0.000097 pixels 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:44:01 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:44:01 INFO imstat::::casa ########################################## 2026-08-04 07:44:01 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:44:01 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:44:01 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:44:01 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:44:01 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:44:01 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:44:01 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:44:01 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:44:01 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:44:01 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:44:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:44:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:44:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:44:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:44:01 INFO imstat:::: Values --- 2026-08-04 07:44:01 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:44:01 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:44:01 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:44:01 INFO imstat:::: -- minimum value [min]: -7.77798e-05 Jy/beam 2026-08-04 07:44:01 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:44:01 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:44:01 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:44:01 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:44:01 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:44:01 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:44:01 INFO imstat:::: Statistics --- 2026-08-04 07:44:01 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:44:01 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:44:01 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:44:01 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:44:01 INFO imstat:::: -- Median of the pixel values [median]: -1.86675e-05 Jy/beam 2026-08-04 07:44:01 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73645e-05 Jy/beam 2026-08-04 07:44:01 INFO imstat:::: -- IQR [quartile]: 3.56077e-05 Jy/beam 2026-08-04 07:44:01 INFO imstat:::: -- First quartile [q1]: -3.45073e-05 Jy/beam 2026-08-04 07:44:01 INFO imstat:::: -- Third quartile [q3]: 1.1004e-06 Jy/beam 2026-08-04 07:44:01 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:44:01 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:44:01 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:44:01 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:44:01 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:44:01 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:44:01 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777975e-05 4.999996e+00 2026-08-04 07:44:01 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:44:00.654122 End time: 2026-08-04 07:44:00.681630 2026-08-04 07:44:01 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:44:01 INFO imstat::::casa ########################################## 2026-08-04 07:44:01 INFO phaseshift::::casa ########################################## 2026-08-04 07:44:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:44:01 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 0.110875644rad' ) 2026-08-04 07:44:01 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:44:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:44:01 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:44:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:44:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:44:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:44:01 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:44:01 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:44:01 INFO MSTransformManager::open Select data 2026-08-04 07:44:01 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:44:05 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:44:05 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 0.110875644rad' successfully parsed 2026-08-04 07:44:05 INFO phaseshift::::casa Shift phase center 2026-08-04 07:44:06 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:44:06 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:44:00.698995 End time: 2026-08-04 07:44:06.200964 2026-08-04 07:44:06 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:44:06 INFO phaseshift::::casa ########################################## 2026-08-04 07:44:06 INFO tclean::::casa ########################################## 2026-08-04 07:44:06 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:44:06 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:44:06 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:44:06 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:44:06 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:44:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:44:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:44:06 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:44:06 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:44:06 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:44:06 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:44:06 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:44:06 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:44:06 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:44:08 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:44:09 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028046 2026-08-04 07:44:09 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:44:09 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:44:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:44:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:44:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:44:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:44:11 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:44:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:44:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:44:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:44:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:44:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:44:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:44:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:44:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:44:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:44:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:44:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:44:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:44:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:44:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:44:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:44:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:44:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:44:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:44:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:44:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:44:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:44:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:44:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:44:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:44:17 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:44:17 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:44:17 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:44:17 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:44:18 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:44:19 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:44:06.259593 End time: 2026-08-04 07:44:19.433710 2026-08-04 07:44:19 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:44:19 INFO tclean::::casa ########################################## 2026-08-04 07:44:19 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:44:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:44:19 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:44:19 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:44:19 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:44:19 2026****** 2026-08-04 07:44:19 INFO ImageFitter::fit+ 2026-08-04 07:44:19 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:44:19 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:44:19 INFO ImageFitter::fit+ --- region: 2026-08-04 07:44:19 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:44:19 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:44:19 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:44:19 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:44:19 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:44:19 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:44:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:44:19 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:44:19 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000002 +/- 0.000777 arcsec 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ --- ra: 128.000014 +/- 0.000127 pixels 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ --- dec: 127.999998 +/- 0.000097 pixels 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:44:20 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:44:20 INFO imstat::::casa ########################################## 2026-08-04 07:44:20 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:44:20 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:44:20 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:44:20 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:44:20 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:44:20 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:44:20 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:44:20 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:44:20 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:44:20 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:44:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:44:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:44:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:44:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:44:20 INFO imstat:::: Values --- 2026-08-04 07:44:20 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:44:20 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:44:20 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:44:20 INFO imstat:::: -- minimum value [min]: -7.77816e-05 Jy/beam 2026-08-04 07:44:20 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:44:20 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-08-04 07:44:20 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:44:20 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-08-04 07:44:20 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:44:20 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:44:20 INFO imstat:::: Statistics --- 2026-08-04 07:44:20 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:44:20 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:44:20 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:44:20 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:44:20 INFO imstat:::: -- Median of the pixel values [median]: -1.8676e-05 Jy/beam 2026-08-04 07:44:20 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73584e-05 Jy/beam 2026-08-04 07:44:20 INFO imstat:::: -- IQR [quartile]: 3.56038e-05 Jy/beam 2026-08-04 07:44:20 INFO imstat:::: -- First quartile [q1]: -3.45104e-05 Jy/beam 2026-08-04 07:44:20 INFO imstat:::: -- Third quartile [q3]: 1.09331e-06 Jy/beam 2026-08-04 07:44:20 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:44:20 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:44:20 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:44:20 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:44:20 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:44:20 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:44:20 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778164e-05 4.999996e+00 2026-08-04 07:44:20 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:44:19.513525 End time: 2026-08-04 07:44:19.541840 2026-08-04 07:44:20 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:44:20 INFO imstat::::casa ########################################## 2026-08-04 07:44:20 INFO phaseshift::::casa ########################################## 2026-08-04 07:44:20 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:44:20 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 39d58m05.8512' ) 2026-08-04 07:44:20 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:44:20 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:44:20 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:44:20 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:44:20 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:44:20 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:44:20 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:44:20 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:44:20 INFO MSTransformManager::open Select data 2026-08-04 07:44:20 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:44:25 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:44:25 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 39d58m05.8512' successfully parsed 2026-08-04 07:44:25 INFO phaseshift::::casa Shift phase center 2026-08-04 07:44:26 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:44:26 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:44:19.559281 End time: 2026-08-04 07:44:26.065535 2026-08-04 07:44:26 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:44:26 INFO phaseshift::::casa ########################################## 2026-08-04 07:44:26 INFO tclean::::casa ########################################## 2026-08-04 07:44:26 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:44:26 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:44:26 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:44:26 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:44:26 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:44:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:44:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:44:26 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:44:26 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:44:26 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:44:26 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:44:26 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:44:26 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:44:26 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:44:27 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:44:27 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026262 2026-08-04 07:44:27 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:44:27 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:44:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:44:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:44:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:44:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:44:31 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:44:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:44:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:44:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:44:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:44:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:44:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:44:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:44:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:44:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:44:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:44:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:44:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:44:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:44:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:44:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:44:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:44:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:44:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:44:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:44:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:44:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:44:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:44:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:44:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:44:38 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:44:38 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:44:38 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:44:39 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:44:40 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:44:41 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:44:26.129701 End time: 2026-08-04 07:44:41.174629 2026-08-04 07:44:41 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:44:41 INFO tclean::::casa ########################################## 2026-08-04 07:44:41 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:44:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:44:41 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:44:41 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:44:41 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:44:41 2026****** 2026-08-04 07:44:41 INFO ImageFitter::fit+ 2026-08-04 07:44:41 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:44:41 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:44:41 INFO ImageFitter::fit+ --- region: 2026-08-04 07:44:41 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:44:41 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:44:41 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:44:41 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:44:41 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:44:41 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:44:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:44:41 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:44:41 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:44:41 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:44:41 INFO imstat::::casa ########################################## 2026-08-04 07:44:41 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:44:41 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:44:41 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:44:41 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:44:41 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:44:41 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:44:41 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:44:41 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:44:41 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:44:41 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:44:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:44:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:44:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:44:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:44:41 INFO imstat:::: Values --- 2026-08-04 07:44:41 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:44:41 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:44:41 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:44:41 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-08-04 07:44:41 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:44:41 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:44:41 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:44:41 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:44:41 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:44:41 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:44:41 INFO imstat:::: Statistics --- 2026-08-04 07:44:41 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:44:41 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:44:41 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:44:41 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:44:41 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-08-04 07:44:41 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-08-04 07:44:41 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-08-04 07:44:41 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-08-04 07:44:41 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-08-04 07:44:41 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:44:41 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:44:41 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:44:41 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:44:41 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:44:41 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:44:41 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778264e-05 4.999996e+00 2026-08-04 07:44:41 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:44:41.256860 End time: 2026-08-04 07:44:41.288287 2026-08-04 07:44:41 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:44:41 INFO imstat::::casa ########################################## 2026-08-04 07:44:41 INFO phaseshift::::casa ########################################## 2026-08-04 07:44:41 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:44:41 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 02:39:52.3901' ) 2026-08-04 07:44:41 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:44:41 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:44:41 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:44:41 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:44:41 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:44:41 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:44:41 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:44:41 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:44:41 INFO MSTransformManager::open Select data 2026-08-04 07:44:41 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:44:45 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-08-04 07:44:45 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 02:39:52.3901' successfully parsed 2026-08-04 07:44:45 INFO phaseshift::::casa Shift phase center 2026-08-04 07:44:46 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:44:46 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:44:41.306007 End time: 2026-08-04 07:44:46.309515 2026-08-04 07:44:46 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:44:46 INFO phaseshift::::casa ########################################## 2026-08-04 07:44:46 INFO tclean::::casa ########################################## 2026-08-04 07:44:46 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:44:46 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:44:46 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:44:46 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:44:46 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:44:47 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:44:47 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:44:47 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:44:47 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:44:47 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:44:47 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:44:47 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:44:47 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:44:47 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:44:48 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:44:48 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027525 2026-08-04 07:44:48 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:44:48 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:44:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:44:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:44:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:44:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:44:50 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:44:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:44:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:44:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:44:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:44:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:44:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:44:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:44:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:44:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:44:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:44:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:44:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:44:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:44:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:44:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:44:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:44:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:44:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:44:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:44:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:44:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:44:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:44:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:44:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:44:56 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:44:56 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:44:56 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:44:58 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:44:58 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:45:00 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:44:46.374180 End time: 2026-08-04 07:44:59.608342 2026-08-04 07:45:00 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:45:00 INFO tclean::::casa ########################################## 2026-08-04 07:45:00 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:45:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:45:00 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:45:00 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:45:00 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:45:00 2026****** 2026-08-04 07:45:00 INFO ImageFitter::fit+ 2026-08-04 07:45:00 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:45:00 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:45:00 INFO ImageFitter::fit+ --- region: 2026-08-04 07:45:00 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:45:00 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:45:00 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:45:00 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:45:00 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:45:00 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:45:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:45:00 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:45:00 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011688 Jy 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:45:00 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:45:00 INFO imstat::::casa ########################################## 2026-08-04 07:45:00 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:45:00 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:45:00 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:45:00 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:45:00 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:45:00 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:45:00 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:45:00 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-08-04 07:45:00 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:45:00 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:45:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:45:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:45:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-08-04 07:45:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-08-04 07:45:00 INFO imstat:::: Values --- 2026-08-04 07:45:00 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:45:00 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:45:00 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:45:00 INFO imstat:::: -- minimum value [min]: -7.78225e-05 Jy/beam 2026-08-04 07:45:00 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:45:00 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:45:00 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:45:00 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:45:00 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:45:00 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:45:00 INFO imstat:::: Statistics --- 2026-08-04 07:45:00 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:45:00 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:45:00 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:45:00 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:45:00 INFO imstat:::: -- Median of the pixel values [median]: -1.86781e-05 Jy/beam 2026-08-04 07:45:00 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73751e-05 Jy/beam 2026-08-04 07:45:00 INFO imstat:::: -- IQR [quartile]: 3.56365e-05 Jy/beam 2026-08-04 07:45:00 INFO imstat:::: -- First quartile [q1]: -3.45278e-05 Jy/beam 2026-08-04 07:45:00 INFO imstat:::: -- Third quartile [q3]: 1.10869e-06 Jy/beam 2026-08-04 07:45:00 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:45:00 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:45:00 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:45:00 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:45:00 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:45:00 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:45:00 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.782251e-05 4.999996e+00 2026-08-04 07:45:00 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:44:59.688594 End time: 2026-08-04 07:44:59.726946 2026-08-04 07:45:00 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:45:00 INFO imstat::::casa ########################################## 2026-08-04 07:45:00 INFO phaseshift::::casa ########################################## 2026-08-04 07:45:00 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:45:00 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 39.968292000deg' ) 2026-08-04 07:45:00 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:45:00 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:45:00 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:45:00 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:45:00 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:45:00 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:45:00 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:45:00 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:45:00 INFO MSTransformManager::open Select data 2026-08-04 07:45:00 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:45:06 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:45:06 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 39.968292000deg' successfully parsed 2026-08-04 07:45:06 INFO phaseshift::::casa Shift phase center 2026-08-04 07:45:07 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:45:07 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:44:59.742216 End time: 2026-08-04 07:45:07.244005 2026-08-04 07:45:07 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:45:07 INFO phaseshift::::casa ########################################## 2026-08-04 07:45:07 INFO tclean::::casa ########################################## 2026-08-04 07:45:07 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:45:07 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:45:07 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:45:07 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:45:07 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:45:07 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:45:07 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:45:07 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:45:07 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:45:07 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:45:07 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:45:07 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:45:07 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:45:07 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:45:09 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:45:10 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025426 2026-08-04 07:45:10 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:45:10 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:45:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:45:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:45:12 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:45:12 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:45:12 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:45:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:45:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:45:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:45:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:45:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:45:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:45:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:45:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:45:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:45:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:45:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:45:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:45:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:45:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:45:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:45:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:45:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:45:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:45:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:45:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:45:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:45:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:45:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:45:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:45:22 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:45:22 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:45:22 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:45:23 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:45:24 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:45:27 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:45:07.300774 End time: 2026-08-04 07:45:26.776287 2026-08-04 07:45:27 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:45:27 INFO tclean::::casa ########################################## 2026-08-04 07:45:27 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:45:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:45:27 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:45:27 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:45:27 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:45:27 2026****** 2026-08-04 07:45:27 INFO ImageFitter::fit+ 2026-08-04 07:45:27 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:45:27 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:45:27 INFO ImageFitter::fit+ --- region: 2026-08-04 07:45:27 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:45:27 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:45:27 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:45:27 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:45:27 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:45:27 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:45:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:45:27 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:45:27 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:45:27 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:45:27 INFO imstat::::casa ########################################## 2026-08-04 07:45:27 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:45:27 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:45:27 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:45:27 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:45:27 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:45:27 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:45:27 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:45:27 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:45:27 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:45:27 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:45:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:45:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:45:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:45:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:45:27 INFO imstat:::: Values --- 2026-08-04 07:45:27 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:45:27 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:45:27 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:45:27 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-08-04 07:45:27 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:45:27 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:45:27 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:45:27 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:45:27 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:45:27 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:45:27 INFO imstat:::: Statistics --- 2026-08-04 07:45:27 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:45:27 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:45:27 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:45:27 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:45:27 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-08-04 07:45:27 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-08-04 07:45:27 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-08-04 07:45:27 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-08-04 07:45:27 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-08-04 07:45:27 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:45:27 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:45:27 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:45:27 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:45:27 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:45:27 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:45:27 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778264e-05 4.999996e+00 2026-08-04 07:45:27 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:45:26.856655 End time: 2026-08-04 07:45:26.884869 2026-08-04 07:45:27 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:45:27 INFO imstat::::casa ########################################## 2026-08-04 07:45:27 INFO phaseshift::::casa ########################################## 2026-08-04 07:45:27 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:45:27 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 0.697578292rad' ) 2026-08-04 07:45:27 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:45:27 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:45:27 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:45:27 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:45:27 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:45:27 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:45:27 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:45:27 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:45:27 INFO MSTransformManager::open Select data 2026-08-04 07:45:27 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:45:30 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:45:30 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 0.697578292rad' successfully parsed 2026-08-04 07:45:30 INFO phaseshift::::casa Shift phase center 2026-08-04 07:45:31 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:45:31 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:45:26.902033 End time: 2026-08-04 07:45:31.430148 2026-08-04 07:45:31 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:45:31 INFO phaseshift::::casa ########################################## 2026-08-04 07:45:31 INFO tclean::::casa ########################################## 2026-08-04 07:45:31 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:45:31 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:45:31 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:45:31 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:45:31 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:45:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:45:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:45:32 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:45:32 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:45:32 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:45:32 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:45:32 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:45:32 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:45:32 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:45:33 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:45:34 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024974 2026-08-04 07:45:34 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:45:34 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:45:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:45:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:45:39 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:45:39 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:45:39 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:45:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:45:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:45:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:45:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:45:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:45:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:45:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:45:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:45:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:45:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:45:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:45:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:45:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:45:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:45:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:45:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:45:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:45:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:45:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:45:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:45:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:45:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:45:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:45:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:45:46 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:45:46 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:45:46 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:45:47 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:45:47 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:45:49 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:45:31.466431 End time: 2026-08-04 07:45:49.062675 2026-08-04 07:45:49 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:45:49 INFO tclean::::casa ########################################## 2026-08-04 07:45:49 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:45:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:45:49 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:45:49 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:45:49 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:45:49 2026****** 2026-08-04 07:45:49 INFO ImageFitter::fit+ 2026-08-04 07:45:49 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:45:49 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:45:49 INFO ImageFitter::fit+ --- region: 2026-08-04 07:45:49 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:45:49 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:45:49 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:45:49 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:45:49 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:45:49 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:45:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:45:49 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:45:49 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:45:49 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:45:49 INFO imstat::::casa ########################################## 2026-08-04 07:45:49 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:45:49 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:45:49 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:45:49 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:45:49 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:45:49 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:45:49 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:45:49 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:45:49 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:45:49 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:45:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:45:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:45:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:45:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:45:49 INFO imstat:::: Values --- 2026-08-04 07:45:49 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:45:49 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:45:49 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:45:49 INFO imstat:::: -- minimum value [min]: -7.7789e-05 Jy/beam 2026-08-04 07:45:49 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:45:49 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:45:49 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:45:49 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:45:49 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:45:49 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:45:49 INFO imstat:::: Statistics --- 2026-08-04 07:45:49 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:45:49 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:45:49 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:45:49 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:45:49 INFO imstat:::: -- Median of the pixel values [median]: -1.86647e-05 Jy/beam 2026-08-04 07:45:49 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73649e-05 Jy/beam 2026-08-04 07:45:49 INFO imstat:::: -- IQR [quartile]: 3.56182e-05 Jy/beam 2026-08-04 07:45:49 INFO imstat:::: -- First quartile [q1]: -3.45079e-05 Jy/beam 2026-08-04 07:45:49 INFO imstat:::: -- Third quartile [q3]: 1.11022e-06 Jy/beam 2026-08-04 07:45:49 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:45:49 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:45:49 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:45:49 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:45:49 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:45:49 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:45:49 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778897e-05 4.999996e+00 2026-08-04 07:45:49 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:45:49.140545 End time: 2026-08-04 07:45:49.167994 2026-08-04 07:45:49 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:45:49 INFO imstat::::casa ########################################## 2026-08-04 07:45:49 INFO phaseshift::::casa ########################################## 2026-08-04 07:45:49 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:45:49 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 39d58m05.8512' ) 2026-08-04 07:45:49 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:45:49 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:45:49 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:45:49 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:45:49 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:45:49 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:45:49 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:45:49 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:45:49 INFO MSTransformManager::open Select data 2026-08-04 07:45:49 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:45:53 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:45:53 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 39d58m05.8512' successfully parsed 2026-08-04 07:45:53 INFO phaseshift::::casa Shift phase center 2026-08-04 07:45:54 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:45:54 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:45:49.184890 End time: 2026-08-04 07:45:53.964967 2026-08-04 07:45:54 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:45:54 INFO phaseshift::::casa ########################################## 2026-08-04 07:45:54 INFO tclean::::casa ########################################## 2026-08-04 07:45:54 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:45:54 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:45:54 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:45:54 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:45:54 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:45:54 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:45:54 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:45:54 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:45:54 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:45:54 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:45:54 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:45:54 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:45:54 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:45:54 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:45:56 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:45:56 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029971 2026-08-04 07:45:56 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:45:56 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:45:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:45:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:45:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:45:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:45:58 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:45:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:45:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:45:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:45:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:45:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:46:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:46:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:46:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:46:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:46:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:46:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:46:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:46:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:46:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:46:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:46:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:46:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:46:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:46:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:46:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:46:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:46:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:46:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:46:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:46:08 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:46:08 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:46:08 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:46:09 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:46:10 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:46:12 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:45:54.025372 End time: 2026-08-04 07:46:12.202761 2026-08-04 07:46:12 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:46:12 INFO tclean::::casa ########################################## 2026-08-04 07:46:12 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:46:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:46:12 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:46:12 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:46:12 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:46:12 2026****** 2026-08-04 07:46:12 INFO ImageFitter::fit+ 2026-08-04 07:46:12 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:46:12 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:46:12 INFO ImageFitter::fit+ --- region: 2026-08-04 07:46:12 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:46:12 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:46:12 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:46:12 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:46:12 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:46:12 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:46:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:46:12 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:46:12 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:46:12 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:46:12 INFO imstat::::casa ########################################## 2026-08-04 07:46:12 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:46:12 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:46:12 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:46:12 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:46:12 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:46:12 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:46:12 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:46:12 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:46:12 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:46:12 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:46:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:46:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:46:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:46:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:46:12 INFO imstat:::: Values --- 2026-08-04 07:46:12 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:46:12 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:46:12 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:46:12 INFO imstat:::: -- minimum value [min]: -7.77773e-05 Jy/beam 2026-08-04 07:46:12 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:46:12 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-08-04 07:46:12 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:46:12 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-08-04 07:46:12 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:46:12 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:46:12 INFO imstat:::: Statistics --- 2026-08-04 07:46:12 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:46:12 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:46:12 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:46:12 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:46:12 INFO imstat:::: -- Median of the pixel values [median]: -1.86786e-05 Jy/beam 2026-08-04 07:46:12 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73603e-05 Jy/beam 2026-08-04 07:46:12 INFO imstat:::: -- IQR [quartile]: 3.56014e-05 Jy/beam 2026-08-04 07:46:12 INFO imstat:::: -- First quartile [q1]: -3.45038e-05 Jy/beam 2026-08-04 07:46:12 INFO imstat:::: -- Third quartile [q3]: 1.09758e-06 Jy/beam 2026-08-04 07:46:12 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:46:12 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:46:12 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:46:12 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:46:12 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:46:12 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:46:12 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777732e-05 4.999996e+00 2026-08-04 07:46:12 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:46:12.282708 End time: 2026-08-04 07:46:12.316386 2026-08-04 07:46:12 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:46:12 INFO imstat::::casa ########################################## 2026-08-04 07:46:12 INFO phaseshift::::casa ########################################## 2026-08-04 07:46:12 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:46:12 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 02:39:52.3901' ) 2026-08-04 07:46:12 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:46:12 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:46:12 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:46:12 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:46:12 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:46:12 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:46:12 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:46:12 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:46:12 INFO MSTransformManager::open Select data 2026-08-04 07:46:12 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:46:16 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-08-04 07:46:16 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 02:39:52.3901' successfully parsed 2026-08-04 07:46:16 INFO phaseshift::::casa Shift phase center 2026-08-04 07:46:17 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:46:17 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:46:12.332615 End time: 2026-08-04 07:46:17.220107 2026-08-04 07:46:17 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:46:17 INFO phaseshift::::casa ########################################## 2026-08-04 07:46:17 INFO tclean::::casa ########################################## 2026-08-04 07:46:17 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:46:17 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:46:17 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:46:17 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:46:17 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:46:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:46:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:46:17 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:46:17 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:46:17 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:46:17 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:46:17 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:46:17 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:46:17 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:46:19 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:46:19 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.030642 2026-08-04 07:46:19 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:46:19 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:46:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:46:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:46:22 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:46:22 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:46:22 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:46:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:46:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:46:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:46:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:46:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:46:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:46:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:46:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:46:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:46:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:46:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:46:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:46:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:46:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:46:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:46:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:46:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:46:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:46:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:46:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:46:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:46:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:46:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:46:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:46:30 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:46:30 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:46:31 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:46:33 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:46:33 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:46:34 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:46:17.268425 End time: 2026-08-04 07:46:33.771996 2026-08-04 07:46:34 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:46:34 INFO tclean::::casa ########################################## 2026-08-04 07:46:34 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:46:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:46:34 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:46:34 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:46:34 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:46:34 2026****** 2026-08-04 07:46:34 INFO ImageFitter::fit+ 2026-08-04 07:46:34 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:46:34 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:46:34 INFO ImageFitter::fit+ --- region: 2026-08-04 07:46:34 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:46:34 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:46:34 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:46:34 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:46:34 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:46:34 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:46:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:46:34 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:46:34 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116878 Jy 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126494 Jy 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ --- ra: 128.000008 +/- 0.000127 pixels 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:46:34 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:46:34 INFO imstat::::casa ########################################## 2026-08-04 07:46:34 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:46:34 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:46:34 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:46:34 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:46:34 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:46:34 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:46:34 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:46:34 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-08-04 07:46:34 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:46:34 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:46:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:46:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:46:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-08-04 07:46:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-08-04 07:46:34 INFO imstat:::: Values --- 2026-08-04 07:46:34 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:46:34 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:46:34 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:46:34 INFO imstat:::: -- minimum value [min]: -7.78143e-05 Jy/beam 2026-08-04 07:46:34 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:46:34 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:46:34 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:46:34 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:46:34 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:46:34 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:46:34 INFO imstat:::: Statistics --- 2026-08-04 07:46:34 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:46:34 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:46:34 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:46:34 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:46:34 INFO imstat:::: -- Median of the pixel values [median]: -1.86838e-05 Jy/beam 2026-08-04 07:46:34 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73769e-05 Jy/beam 2026-08-04 07:46:34 INFO imstat:::: -- IQR [quartile]: 3.5634e-05 Jy/beam 2026-08-04 07:46:34 INFO imstat:::: -- First quartile [q1]: -3.45216e-05 Jy/beam 2026-08-04 07:46:34 INFO imstat:::: -- Third quartile [q3]: 1.1124e-06 Jy/beam 2026-08-04 07:46:34 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:46:34 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:46:34 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:46:34 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:46:34 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:46:34 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:46:34 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.781426e-05 4.999996e+00 2026-08-04 07:46:34 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:46:33.857741 End time: 2026-08-04 07:46:33.898453 2026-08-04 07:46:34 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:46:34 INFO imstat::::casa ########################################## 2026-08-04 07:46:34 INFO phaseshift::::casa ########################################## 2026-08-04 07:46:34 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:46:34 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 39.968292000deg' ) 2026-08-04 07:46:34 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:46:34 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:46:34 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:46:34 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:46:34 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:46:34 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:46:34 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:46:34 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:46:34 INFO MSTransformManager::open Select data 2026-08-04 07:46:34 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:46:38 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:46:38 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 39.968292000deg' successfully parsed 2026-08-04 07:46:38 INFO phaseshift::::casa Shift phase center 2026-08-04 07:46:39 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:46:39 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:46:33.921335 End time: 2026-08-04 07:46:39.098428 2026-08-04 07:46:39 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:46:39 INFO phaseshift::::casa ########################################## 2026-08-04 07:46:39 INFO tclean::::casa ########################################## 2026-08-04 07:46:39 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:46:39 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:46:39 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:46:39 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:46:39 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:46:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:46:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:46:39 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:46:39 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:46:39 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:46:39 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:46:39 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:46:39 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:46:39 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:46:41 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:46:41 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02938 2026-08-04 07:46:41 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:46:41 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:46:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:46:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:46:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:46:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:46:45 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:46:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:46:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:46:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:46:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:46:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:46:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:46:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:46:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:46:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:46:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:46:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:46:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:46:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:46:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:46:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:46:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:46:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:46:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:46:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:46:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:46:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:46:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:46:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:46:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:46:53 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:46:53 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:46:53 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:46:54 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:46:54 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:46:56 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:46:39.159873 End time: 2026-08-04 07:46:55.760636 2026-08-04 07:46:56 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:46:56 INFO tclean::::casa ########################################## 2026-08-04 07:46:56 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:46:56 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:46:56 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:46:56 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:46:56 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:46:56 2026****** 2026-08-04 07:46:56 INFO ImageFitter::fit+ 2026-08-04 07:46:56 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:46:56 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:46:56 INFO ImageFitter::fit+ --- region: 2026-08-04 07:46:56 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:46:56 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:46:56 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:46:56 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:46:56 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:46:56 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:46:56 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:46:56 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:46:56 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:46:56 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:46:56 INFO imstat::::casa ########################################## 2026-08-04 07:46:56 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:46:56 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:46:56 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:46:56 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:46:56 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:46:56 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:46:56 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:46:56 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:46:56 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:46:56 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:46:56 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:46:56 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:46:56 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:46:56 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:46:56 INFO imstat:::: Values --- 2026-08-04 07:46:56 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:46:56 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:46:56 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:46:56 INFO imstat:::: -- minimum value [min]: -7.77773e-05 Jy/beam 2026-08-04 07:46:56 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:46:56 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-08-04 07:46:56 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:46:56 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-08-04 07:46:56 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:46:56 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:46:56 INFO imstat:::: Statistics --- 2026-08-04 07:46:56 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:46:56 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:46:56 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:46:56 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:46:56 INFO imstat:::: -- Median of the pixel values [median]: -1.86786e-05 Jy/beam 2026-08-04 07:46:56 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73603e-05 Jy/beam 2026-08-04 07:46:56 INFO imstat:::: -- IQR [quartile]: 3.56014e-05 Jy/beam 2026-08-04 07:46:56 INFO imstat:::: -- First quartile [q1]: -3.45038e-05 Jy/beam 2026-08-04 07:46:56 INFO imstat:::: -- Third quartile [q3]: 1.09758e-06 Jy/beam 2026-08-04 07:46:56 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:46:56 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:46:56 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:46:56 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:46:56 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:46:56 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:46:56 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777732e-05 4.999996e+00 2026-08-04 07:46:56 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:46:55.840874 End time: 2026-08-04 07:46:55.898779 2026-08-04 07:46:56 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:46:56 INFO imstat::::casa ########################################## 2026-08-04 07:46:56 INFO phaseshift::::casa ########################################## 2026-08-04 07:46:56 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:46:56 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 0.697578292rad' ) 2026-08-04 07:46:56 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:46:56 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:46:56 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:46:56 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:46:56 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:46:56 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:46:56 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:46:56 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:46:56 INFO MSTransformManager::open Select data 2026-08-04 07:46:56 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:47:01 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:47:01 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 0.697578292rad' successfully parsed 2026-08-04 07:47:01 INFO phaseshift::::casa Shift phase center 2026-08-04 07:47:02 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:47:02 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:46:55.920212 End time: 2026-08-04 07:47:01.813071 2026-08-04 07:47:02 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:47:02 INFO phaseshift::::casa ########################################## 2026-08-04 07:47:02 INFO tclean::::casa ########################################## 2026-08-04 07:47:02 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:47:02 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:47:02 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:47:02 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:47:02 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:47:02 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:47:02 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:47:02 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:47:02 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:47:02 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:47:02 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:47:02 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:47:02 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:47:02 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:47:03 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:47:03 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028003 2026-08-04 07:47:03 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:47:03 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:47:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:47:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:47:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:47:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:47:07 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:47:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:47:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:47:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:47:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:47:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:47:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:47:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:47:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:47:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:47:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:47:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:47:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:47:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:47:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:47:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:47:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:47:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:47:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:47:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:47:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:47:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:47:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:47:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:47:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:47:14 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:47:14 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:47:14 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:47:15 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:47:15 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:47:17 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:47:01.855584 End time: 2026-08-04 07:47:17.413730 2026-08-04 07:47:17 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:47:17 INFO tclean::::casa ########################################## 2026-08-04 07:47:17 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:47:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:47:17 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:47:17 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:47:17 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:47:17 2026****** 2026-08-04 07:47:17 INFO ImageFitter::fit+ 2026-08-04 07:47:17 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:47:17 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:47:17 INFO ImageFitter::fit+ --- region: 2026-08-04 07:47:17 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:47:17 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:47:17 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:47:17 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:47:17 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:47:17 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:47:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:47:17 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:47:17 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126487 Jy 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:47:17 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:47:17 INFO imstat::::casa ########################################## 2026-08-04 07:47:17 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:47:17 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:47:17 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:47:17 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:47:17 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:47:18 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:47:18 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:47:18 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:47:18 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:47:18 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:47:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:47:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:47:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:47:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:47:18 INFO imstat:::: Values --- 2026-08-04 07:47:18 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:47:18 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:47:18 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:47:18 INFO imstat:::: -- minimum value [min]: -7.7781e-05 Jy/beam 2026-08-04 07:47:18 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:47:18 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:47:18 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:47:18 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:47:18 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:47:18 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:47:18 INFO imstat:::: Statistics --- 2026-08-04 07:47:18 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:47:18 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:47:18 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:47:18 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:47:18 INFO imstat:::: -- Median of the pixel values [median]: -1.86714e-05 Jy/beam 2026-08-04 07:47:18 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73593e-05 Jy/beam 2026-08-04 07:47:18 INFO imstat:::: -- IQR [quartile]: 3.56161e-05 Jy/beam 2026-08-04 07:47:18 INFO imstat:::: -- First quartile [q1]: -3.45125e-05 Jy/beam 2026-08-04 07:47:18 INFO imstat:::: -- Third quartile [q3]: 1.10364e-06 Jy/beam 2026-08-04 07:47:18 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:47:18 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:47:18 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:47:18 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:47:18 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:47:18 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:47:18 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778104e-05 4.999996e+00 2026-08-04 07:47:18 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:47:17.489647 End time: 2026-08-04 07:47:17.526185 2026-08-04 07:47:18 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:47:18 INFO imstat::::casa ########################################## 2026-08-04 07:47:18 INFO phaseshift::::casa ########################################## 2026-08-04 07:47:18 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:47:18 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 39d58m05.8512' ) 2026-08-04 07:47:18 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:47:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:47:18 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:47:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:47:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:47:18 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:47:18 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:47:18 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:47:18 INFO MSTransformManager::open Select data 2026-08-04 07:47:18 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:47:21 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:47:21 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 39d58m05.8512' successfully parsed 2026-08-04 07:47:21 INFO phaseshift::::casa Shift phase center 2026-08-04 07:47:22 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:47:22 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:47:17.542032 End time: 2026-08-04 07:47:22.490473 2026-08-04 07:47:22 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:47:22 INFO phaseshift::::casa ########################################## 2026-08-04 07:47:23 INFO tclean::::casa ########################################## 2026-08-04 07:47:23 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:47:23 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:47:23 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:47:23 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:47:23 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:47:23 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:47:23 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:47:23 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:47:23 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:47:23 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:47:23 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:47:23 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:47:23 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:47:23 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:47:24 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:47:24 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024593 2026-08-04 07:47:24 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:47:24 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:47:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:47:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:47:26 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:47:26 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:47:26 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:47:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:47:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:47:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:47:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:47:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:47:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:47:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:47:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:47:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:47:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:47:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:47:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:47:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:47:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:47:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:47:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:47:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:47:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:47:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:47:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:47:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:47:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:47:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:47:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:47:33 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:47:33 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:47:33 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:47:33 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:47:34 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:47:36 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:47:22.545911 End time: 2026-08-04 07:47:35.735898 2026-08-04 07:47:36 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:47:36 INFO tclean::::casa ########################################## 2026-08-04 07:47:36 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:47:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:47:36 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:47:36 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:47:36 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:47:36 2026****** 2026-08-04 07:47:36 INFO ImageFitter::fit+ 2026-08-04 07:47:36 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:47:36 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:47:36 INFO ImageFitter::fit+ --- region: 2026-08-04 07:47:36 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:47:36 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:47:36 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:47:36 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:47:36 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:47:36 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:47:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:47:36 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:47:36 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:47:36 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:47:36 INFO imstat::::casa ########################################## 2026-08-04 07:47:36 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:47:36 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:47:36 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:47:36 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:47:36 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:47:36 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:47:36 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:47:36 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:47:36 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:47:36 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:47:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:47:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:47:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:47:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:47:36 INFO imstat:::: Values --- 2026-08-04 07:47:36 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:47:36 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:47:36 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:47:36 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-08-04 07:47:36 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:47:36 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:47:36 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:47:36 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:47:36 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:47:36 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:47:36 INFO imstat:::: Statistics --- 2026-08-04 07:47:36 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:47:36 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:47:36 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:47:36 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:47:36 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-08-04 07:47:36 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-08-04 07:47:36 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-08-04 07:47:36 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-08-04 07:47:36 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-08-04 07:47:36 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:47:36 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:47:36 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:47:36 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:47:36 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:47:36 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:47:36 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778264e-05 4.999996e+00 2026-08-04 07:47:36 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:47:35.823214 End time: 2026-08-04 07:47:35.850398 2026-08-04 07:47:36 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:47:36 INFO imstat::::casa ########################################## 2026-08-04 07:47:36 INFO phaseshift::::casa ########################################## 2026-08-04 07:47:36 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:47:36 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 02:39:52.3901' ) 2026-08-04 07:47:36 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:47:36 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:47:36 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:47:36 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:47:36 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:47:36 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:47:36 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:47:36 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:47:36 INFO MSTransformManager::open Select data 2026-08-04 07:47:36 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:47:39 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-08-04 07:47:39 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 02:39:52.3901' successfully parsed 2026-08-04 07:47:39 INFO phaseshift::::casa Shift phase center 2026-08-04 07:47:41 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:47:41 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:47:35.868954 End time: 2026-08-04 07:47:41.137623 2026-08-04 07:47:41 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:47:41 INFO phaseshift::::casa ########################################## 2026-08-04 07:47:41 INFO tclean::::casa ########################################## 2026-08-04 07:47:41 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:47:41 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:47:41 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:47:41 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:47:41 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:47:41 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:47:41 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:47:41 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:47:41 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:47:41 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:47:41 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:47:41 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:47:41 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:47:41 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:47:43 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:47:43 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024484 2026-08-04 07:47:43 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:47:43 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:47:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:47:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:47:44 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:47:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:47:45 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:47:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:47:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:47:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:47:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:47:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:47:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:47:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:47:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:47:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:47:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:47:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:47:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:47:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:47:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:47:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:47:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:47:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:47:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:47:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:47:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:47:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:47:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:47:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:47:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:47:52 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:47:52 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:47:52 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:47:53 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:47:54 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:47:55 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:47:41.199294 End time: 2026-08-04 07:47:55.475901 2026-08-04 07:47:55 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:47:55 INFO tclean::::casa ########################################## 2026-08-04 07:47:56 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:47:56 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:47:56 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:47:56 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:47:56 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:47:56 2026****** 2026-08-04 07:47:56 INFO ImageFitter::fit+ 2026-08-04 07:47:56 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:47:56 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:47:56 INFO ImageFitter::fit+ --- region: 2026-08-04 07:47:56 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:47:56 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:47:56 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:47:56 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:47:56 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:47:56 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:47:56 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:47:56 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:47:56 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011688 Jy 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:47:56 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:47:56 INFO imstat::::casa ########################################## 2026-08-04 07:47:56 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:47:56 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:47:56 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:47:56 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:47:56 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:47:56 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:47:56 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:47:56 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-08-04 07:47:56 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:47:56 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:47:56 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:47:56 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:47:56 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-08-04 07:47:56 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-08-04 07:47:56 INFO imstat:::: Values --- 2026-08-04 07:47:56 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:47:56 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:47:56 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:47:56 INFO imstat:::: -- minimum value [min]: -7.78225e-05 Jy/beam 2026-08-04 07:47:56 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:47:56 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:47:56 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:47:56 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:47:56 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:47:56 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:47:56 INFO imstat:::: Statistics --- 2026-08-04 07:47:56 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:47:56 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:47:56 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:47:56 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:47:56 INFO imstat:::: -- Median of the pixel values [median]: -1.86781e-05 Jy/beam 2026-08-04 07:47:56 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73751e-05 Jy/beam 2026-08-04 07:47:56 INFO imstat:::: -- IQR [quartile]: 3.56365e-05 Jy/beam 2026-08-04 07:47:56 INFO imstat:::: -- First quartile [q1]: -3.45278e-05 Jy/beam 2026-08-04 07:47:56 INFO imstat:::: -- Third quartile [q3]: 1.10869e-06 Jy/beam 2026-08-04 07:47:56 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:47:56 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:47:56 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:47:56 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:47:56 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:47:56 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:47:56 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.782251e-05 4.999996e+00 2026-08-04 07:47:56 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:47:55.553512 End time: 2026-08-04 07:47:55.580214 2026-08-04 07:47:56 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:47:56 INFO imstat::::casa ########################################## 2026-08-04 07:47:56 INFO phaseshift::::casa ########################################## 2026-08-04 07:47:56 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:47:56 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 39.968292000deg' ) 2026-08-04 07:47:56 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:47:56 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:47:56 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:47:56 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:47:56 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:47:56 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:47:56 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:47:56 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:47:56 INFO MSTransformManager::open Select data 2026-08-04 07:47:56 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:47:59 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:47:59 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 39.968292000deg' successfully parsed 2026-08-04 07:47:59 INFO phaseshift::::casa Shift phase center 2026-08-04 07:48:00 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:48:00 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:47:55.598722 End time: 2026-08-04 07:47:59.687463 2026-08-04 07:48:00 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:48:00 INFO phaseshift::::casa ########################################## 2026-08-04 07:48:00 INFO tclean::::casa ########################################## 2026-08-04 07:48:00 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:48:00 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:48:00 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:48:00 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:48:00 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:48:00 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:48:00 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:48:00 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:48:00 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:48:00 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:48:00 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:48:00 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:48:00 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:48:00 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:48:02 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:48:02 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026922 2026-08-04 07:48:02 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:48:02 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:48:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:48:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:48:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:48:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:48:04 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:48:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:48:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:48:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:48:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:48:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:48:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:48:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:48:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:48:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:48:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:48:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:48:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:48:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:48:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:48:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:48:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:48:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:48:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:48:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:48:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:48:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:48:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:48:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:48:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:48:12 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:48:12 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:48:12 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:48:12 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:48:13 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:48:14 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:47:59.747238 End time: 2026-08-04 07:48:13.751883 2026-08-04 07:48:14 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:48:14 INFO tclean::::casa ########################################## 2026-08-04 07:48:14 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:48:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:48:14 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:48:14 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:48:14 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:48:14 2026****** 2026-08-04 07:48:14 INFO ImageFitter::fit+ 2026-08-04 07:48:14 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:48:14 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:48:14 INFO ImageFitter::fit+ --- region: 2026-08-04 07:48:14 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:48:14 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:48:14 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:48:14 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:48:14 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:48:14 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:48:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:48:14 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:48:14 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:48:14 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:48:14 INFO imstat::::casa ########################################## 2026-08-04 07:48:14 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:48:14 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:48:14 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:48:14 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:48:14 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:48:14 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:48:14 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:48:14 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:48:14 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:48:14 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:48:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:48:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:48:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:48:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:48:14 INFO imstat:::: Values --- 2026-08-04 07:48:14 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:48:14 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:48:14 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:48:14 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-08-04 07:48:14 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:48:14 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:48:14 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:48:14 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:48:14 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:48:14 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:48:14 INFO imstat:::: Statistics --- 2026-08-04 07:48:14 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:48:14 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:48:14 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:48:14 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:48:14 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-08-04 07:48:14 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-08-04 07:48:14 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-08-04 07:48:14 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-08-04 07:48:14 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-08-04 07:48:14 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:48:14 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:48:14 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:48:14 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:48:14 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:48:14 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:48:14 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778264e-05 4.999996e+00 2026-08-04 07:48:14 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:48:13.836592 End time: 2026-08-04 07:48:13.862974 2026-08-04 07:48:14 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:48:14 INFO imstat::::casa ########################################## 2026-08-04 07:48:14 INFO phaseshift::::casa ########################################## 2026-08-04 07:48:14 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:48:14 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 0.697578292rad' ) 2026-08-04 07:48:14 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:48:14 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:48:14 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:48:14 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:48:14 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:48:14 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:48:14 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:48:14 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:48:14 INFO MSTransformManager::open Select data 2026-08-04 07:48:14 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:48:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:48:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 0.697578292rad' successfully parsed 2026-08-04 07:48:18 INFO phaseshift::::casa Shift phase center 2026-08-04 07:48:19 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:48:19 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:48:13.883509 End time: 2026-08-04 07:48:19.122291 2026-08-04 07:48:19 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:48:19 INFO phaseshift::::casa ########################################## 2026-08-04 07:48:19 INFO tclean::::casa ########################################## 2026-08-04 07:48:19 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:48:19 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:48:19 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:48:19 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:48:19 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:48:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:48:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:48:19 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:48:19 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:48:19 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:48:19 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:48:19 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:48:19 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:48:19 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:48:20 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:48:20 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.015681 2026-08-04 07:48:20 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:48:20 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:48:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:48:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:48:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:48:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:48:25 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:48:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:48:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:48:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:48:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:48:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:48:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:48:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:48:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:48:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:48:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:48:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:48:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:48:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:48:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:48:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:48:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:48:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:48:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:48:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:48:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:48:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:48:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:48:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:48:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:48:30 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:48:30 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:48:30 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:48:31 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:48:31 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:48:32 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:48:19.163691 End time: 2026-08-04 07:48:32.448528 2026-08-04 07:48:32 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:48:32 INFO tclean::::casa ########################################## 2026-08-04 07:48:32 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:48:32 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:48:32 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:48:32 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:48:32 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:48:32 2026****** 2026-08-04 07:48:32 INFO ImageFitter::fit+ 2026-08-04 07:48:32 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:48:32 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:48:32 INFO ImageFitter::fit+ --- region: 2026-08-04 07:48:32 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:48:32 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:48:32 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:48:32 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:48:32 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:48:32 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:48:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:48:33 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:48:33 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:48:33 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:48:33 INFO imstat::::casa ########################################## 2026-08-04 07:48:33 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:48:33 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:48:33 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:48:33 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:48:33 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:48:33 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:48:33 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:48:33 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:48:33 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:48:33 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:48:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:48:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:48:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:48:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:48:33 INFO imstat:::: Values --- 2026-08-04 07:48:33 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:48:33 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:48:33 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:48:33 INFO imstat:::: -- minimum value [min]: -7.7789e-05 Jy/beam 2026-08-04 07:48:33 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:48:33 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:48:33 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:48:33 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:48:33 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:48:33 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:48:33 INFO imstat:::: Statistics --- 2026-08-04 07:48:33 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:48:33 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:48:33 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:48:33 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:48:33 INFO imstat:::: -- Median of the pixel values [median]: -1.86647e-05 Jy/beam 2026-08-04 07:48:33 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73649e-05 Jy/beam 2026-08-04 07:48:33 INFO imstat:::: -- IQR [quartile]: 3.56182e-05 Jy/beam 2026-08-04 07:48:33 INFO imstat:::: -- First quartile [q1]: -3.45079e-05 Jy/beam 2026-08-04 07:48:33 INFO imstat:::: -- Third quartile [q3]: 1.11022e-06 Jy/beam 2026-08-04 07:48:33 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:48:33 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:48:33 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:48:33 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:48:33 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:48:33 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:48:33 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778897e-05 4.999996e+00 2026-08-04 07:48:33 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:48:32.523822 End time: 2026-08-04 07:48:32.550640 2026-08-04 07:48:33 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:48:33 INFO imstat::::casa ########################################## 2026-08-04 07:48:33 INFO phaseshift::::casa ########################################## 2026-08-04 07:48:33 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:48:33 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 39d58m05.8512' ) 2026-08-04 07:48:33 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:48:33 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:48:33 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:48:33 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:48:33 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:48:33 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:48:33 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:48:33 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:48:33 INFO MSTransformManager::open Select data 2026-08-04 07:48:33 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:48:36 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:48:36 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 39d58m05.8512' successfully parsed 2026-08-04 07:48:36 INFO phaseshift::::casa Shift phase center 2026-08-04 07:48:38 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:48:38 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:48:32.567238 End time: 2026-08-04 07:48:38.094417 2026-08-04 07:48:38 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:48:38 INFO phaseshift::::casa ########################################## 2026-08-04 07:48:38 INFO tclean::::casa ########################################## 2026-08-04 07:48:38 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:48:38 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:48:38 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:48:38 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:48:38 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:48:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:48:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:48:38 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:48:38 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:48:38 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:48:38 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:48:38 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:48:38 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:48:38 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:48:40 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:48:40 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025807 2026-08-04 07:48:40 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:48:40 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:48:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:48:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:48:43 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:48:43 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:48:43 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:48:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:48:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:48:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:48:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:48:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:48:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:48:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:48:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:48:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:48:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:48:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:48:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:48:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:48:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:48:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:48:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:48:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:48:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:48:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:48:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:48:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:48:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:48:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:48:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:48:50 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:48:50 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:48:50 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:48:51 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:48:51 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:48:52 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:48:38.156889 End time: 2026-08-04 07:48:52.348865 2026-08-04 07:48:52 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:48:52 INFO tclean::::casa ########################################## 2026-08-04 07:48:52 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:48:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:48:52 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:48:52 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:48:52 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:48:52 2026****** 2026-08-04 07:48:52 INFO ImageFitter::fit+ 2026-08-04 07:48:52 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:48:52 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:48:52 INFO ImageFitter::fit+ --- region: 2026-08-04 07:48:52 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:48:52 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:48:52 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:48:52 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:48:52 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:48:52 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:48:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:48:52 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:48:52 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:48:52 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:48:52 INFO imstat::::casa ########################################## 2026-08-04 07:48:52 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:48:52 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:48:52 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:48:52 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:48:52 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:48:52 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:48:52 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:48:52 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:48:52 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:48:52 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:48:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:48:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:48:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:48:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:48:52 INFO imstat:::: Values --- 2026-08-04 07:48:52 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:48:52 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:48:52 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:48:52 INFO imstat:::: -- minimum value [min]: -7.77853e-05 Jy/beam 2026-08-04 07:48:52 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:48:52 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:48:52 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:48:52 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:48:52 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:48:52 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:48:52 INFO imstat:::: Statistics --- 2026-08-04 07:48:52 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:48:52 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:48:52 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:48:52 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:48:52 INFO imstat:::: -- Median of the pixel values [median]: -1.86679e-05 Jy/beam 2026-08-04 07:48:52 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73586e-05 Jy/beam 2026-08-04 07:48:52 INFO imstat:::: -- IQR [quartile]: 3.56112e-05 Jy/beam 2026-08-04 07:48:52 INFO imstat:::: -- First quartile [q1]: -3.45109e-05 Jy/beam 2026-08-04 07:48:52 INFO imstat:::: -- Third quartile [q3]: 1.10039e-06 Jy/beam 2026-08-04 07:48:52 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:48:52 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:48:52 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:48:52 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:48:52 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:48:52 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:48:52 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778534e-05 4.999996e+00 2026-08-04 07:48:52 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:48:52.428496 End time: 2026-08-04 07:48:52.456921 2026-08-04 07:48:52 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:48:52 INFO imstat::::casa ########################################## 2026-08-04 07:48:52 INFO phaseshift::::casa ########################################## 2026-08-04 07:48:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:48:52 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 02:39:52.3901' ) 2026-08-04 07:48:52 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:48:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:48:52 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:48:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:48:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:48:53 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:48:53 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:48:53 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:48:53 INFO MSTransformManager::open Select data 2026-08-04 07:48:53 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:48:56 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-08-04 07:48:56 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 02:39:52.3901' successfully parsed 2026-08-04 07:48:56 INFO phaseshift::::casa Shift phase center 2026-08-04 07:48:59 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:48:59 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:48:52.473172 End time: 2026-08-04 07:48:59.272965 2026-08-04 07:48:59 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:48:59 INFO phaseshift::::casa ########################################## 2026-08-04 07:48:59 INFO tclean::::casa ########################################## 2026-08-04 07:48:59 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:48:59 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:48:59 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:48:59 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:48:59 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:49:00 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:49:00 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:49:00 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:49:00 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:49:00 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:49:00 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:49:00 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:49:00 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:49:00 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:49:02 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:49:02 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027391 2026-08-04 07:49:02 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:49:02 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:49:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:49:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:49:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:49:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:49:04 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:49:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:49:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:49:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:49:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:49:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:49:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:49:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:49:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:49:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:49:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:49:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:49:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:49:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:49:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:49:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:49:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:49:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:49:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:49:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:49:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-08-04 07:49:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:49:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:49:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:49:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:49:14 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:49:14 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:49:14 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:49:14 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:49:15 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:49:16 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:48:59.334128 End time: 2026-08-04 07:49:15.517299 2026-08-04 07:49:16 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:49:16 INFO tclean::::casa ########################################## 2026-08-04 07:49:16 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:49:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:49:16 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:49:16 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:49:16 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:49:16 2026****** 2026-08-04 07:49:16 INFO ImageFitter::fit+ 2026-08-04 07:49:16 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:49:16 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:49:16 INFO ImageFitter::fit+ --- region: 2026-08-04 07:49:16 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:49:16 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:49:16 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:49:16 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:49:16 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:49:16 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:49:16 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:49:16 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:49:16 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116885 Jy 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126501 Jy 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:49:16 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:49:16 INFO imstat::::casa ########################################## 2026-08-04 07:49:16 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:49:16 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:49:16 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:49:16 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:49:16 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:49:16 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:49:16 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:49:16 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.865, I, 999981612.9Hz to 19:52:21.081, +40.22.53.889, I, 999981612.9Hz) 2026-08-04 07:49:16 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:49:16 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:49:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:49:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:49:16 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-08-04 07:49:16 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-08-04 07:49:16 INFO imstat:::: Values --- 2026-08-04 07:49:16 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:49:16 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:49:16 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:49:16 INFO imstat:::: -- minimum value [min]: -7.78268e-05 Jy/beam 2026-08-04 07:49:16 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:49:16 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:49:16 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:49:16 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:49:16 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:49:16 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:49:16 INFO imstat:::: Statistics --- 2026-08-04 07:49:16 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:49:16 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:49:16 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:49:16 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:49:16 INFO imstat:::: -- Median of the pixel values [median]: -1.8675e-05 Jy/beam 2026-08-04 07:49:16 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73782e-05 Jy/beam 2026-08-04 07:49:16 INFO imstat:::: -- IQR [quartile]: 3.56598e-05 Jy/beam 2026-08-04 07:49:16 INFO imstat:::: -- First quartile [q1]: -3.45364e-05 Jy/beam 2026-08-04 07:49:16 INFO imstat:::: -- Third quartile [q3]: 1.12335e-06 Jy/beam 2026-08-04 07:49:16 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:49:16 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:49:16 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:49:16 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:49:16 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:49:16 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:49:16 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.782676e-05 4.999996e+00 2026-08-04 07:49:16 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:49:15.592037 End time: 2026-08-04 07:49:15.621857 2026-08-04 07:49:16 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:49:16 INFO imstat::::casa ########################################## 2026-08-04 07:49:16 INFO phaseshift::::casa ########################################## 2026-08-04 07:49:16 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:49:16 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 39.968292000deg' ) 2026-08-04 07:49:16 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:49:16 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:49:16 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:49:16 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:49:16 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:49:16 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:49:16 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:49:16 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:49:16 INFO MSTransformManager::open Select data 2026-08-04 07:49:16 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:49:19 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:49:19 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 39.968292000deg' successfully parsed 2026-08-04 07:49:19 INFO phaseshift::::casa Shift phase center 2026-08-04 07:49:19 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:49:19 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:49:15.637677 End time: 2026-08-04 07:49:19.402787 2026-08-04 07:49:19 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:49:19 INFO phaseshift::::casa ########################################## 2026-08-04 07:49:19 INFO tclean::::casa ########################################## 2026-08-04 07:49:19 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:49:19 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:49:19 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:49:19 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:49:19 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:49:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:49:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:49:20 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:49:20 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:49:20 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:49:20 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:49:20 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:49:20 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:49:20 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:49:21 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:49:21 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028117 2026-08-04 07:49:21 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:49:21 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:49:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:49:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:49:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:49:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:49:23 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:49:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:49:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:49:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:49:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:49:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:49:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:49:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:49:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:49:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:49:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:49:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:49:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:49:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:49:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:49:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:49:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:49:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:49:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:49:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:49:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:49:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:49:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:49:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:49:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:49:29 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:49:29 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:49:29 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:49:31 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:49:31 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:49:33 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:49:19.463539 End time: 2026-08-04 07:49:33.064018 2026-08-04 07:49:33 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:49:33 INFO tclean::::casa ########################################## 2026-08-04 07:49:33 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:49:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:49:33 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:49:33 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:49:33 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:49:33 2026****** 2026-08-04 07:49:33 INFO ImageFitter::fit+ 2026-08-04 07:49:33 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:49:33 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:49:33 INFO ImageFitter::fit+ --- region: 2026-08-04 07:49:33 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:49:33 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:49:33 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:49:33 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:49:33 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:49:33 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:49:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:49:33 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:49:33 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:49:33 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:49:33 INFO imstat::::casa ########################################## 2026-08-04 07:49:33 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:49:33 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:49:33 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:49:33 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:49:33 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:49:33 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:49:33 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:49:33 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:49:33 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:49:33 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:49:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:49:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:49:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:49:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:49:33 INFO imstat:::: Values --- 2026-08-04 07:49:33 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:49:33 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:49:33 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:49:33 INFO imstat:::: -- minimum value [min]: -7.77853e-05 Jy/beam 2026-08-04 07:49:33 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:49:33 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:49:33 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:49:33 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:49:33 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:49:33 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:49:33 INFO imstat:::: Statistics --- 2026-08-04 07:49:33 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:49:33 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:49:33 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:49:33 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:49:33 INFO imstat:::: -- Median of the pixel values [median]: -1.86679e-05 Jy/beam 2026-08-04 07:49:33 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73586e-05 Jy/beam 2026-08-04 07:49:33 INFO imstat:::: -- IQR [quartile]: 3.56112e-05 Jy/beam 2026-08-04 07:49:33 INFO imstat:::: -- First quartile [q1]: -3.45109e-05 Jy/beam 2026-08-04 07:49:33 INFO imstat:::: -- Third quartile [q3]: 1.10039e-06 Jy/beam 2026-08-04 07:49:33 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:49:33 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:49:33 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:49:33 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:49:33 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:49:33 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:49:33 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.778534e-05 4.999996e+00 2026-08-04 07:49:33 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:49:33.148761 End time: 2026-08-04 07:49:33.182661 2026-08-04 07:49:33 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:49:33 INFO imstat::::casa ########################################## 2026-08-04 07:49:33 INFO phaseshift::::casa ########################################## 2026-08-04 07:49:33 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-08-04 07:49:33 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 0.697578292rad' ) 2026-08-04 07:49:33 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-08-04 07:49:33 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-08-04 07:49:33 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-08-04 07:49:33 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-08-04 07:49:33 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-08-04 07:49:33 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-08-04 07:49:33 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-08-04 07:49:33 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-08-04 07:49:33 INFO MSTransformManager::open Select data 2026-08-04 07:49:33 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-08-04 07:49:37 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-08-04 07:49:37 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 0.697578292rad' successfully parsed 2026-08-04 07:49:37 INFO phaseshift::::casa Shift phase center 2026-08-04 07:49:38 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-08-04 07:49:38 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-08-04 07:49:33.198923 End time: 2026-08-04 07:49:37.912870 2026-08-04 07:49:38 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-08-04 07:49:38 INFO phaseshift::::casa ########################################## 2026-08-04 07:49:38 INFO tclean::::casa ########################################## 2026-08-04 07:49:38 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-08-04 07:49:38 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, fracbw=-1.0, uvtaper=[], niter=20, gain=0.3, threshold=0.0, nsigma=0.0, cycleniter=-1, cyclefactor=1.0, minpsffraction=0.05, maxpsffraction=0.8, interactive=False, nmajor=-1, fullsummary=False, usemask='user', mask='', pbmask=0.0, sidelobethreshold=3.0, noisethreshold=5.0, lownoisethreshold=1.5, negativethreshold=0.0, smoothfactor=1.0, minbeamfrac=0.3, cutthreshold=0.01, growiterations=75, dogrowprune=True, minpercentchange=-1.0, verbose=False, fastnoise=True, restart=True, savemodel='none', calcres=True, calcpsf=True, psfcutoff=0.35, parallel=False ) 2026-08-04 07:49:38 INFO tclean::::casa Verifying Input Parameters 2026-08-04 07:49:38 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-08-04 07:49:38 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-08-04 07:49:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:49:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-08-04 07:49:38 INFO SynthesisImagerVi2::defineImage Impars: start 2026-08-04 07:49:38 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-08-04 07:49:38 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-08-04 07:49:38 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.52 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-08-04 07:49:38 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-08-04 07:49:38 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-08-04 07:49:38 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-08-04 07:49:39 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-08-04 07:49:39 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028872 2026-08-04 07:49:39 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:49:39 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-08-04 07:49:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-08-04 07:49:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-08-04 07:49:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-08-04 07:49:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-08-04 07:49:41 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-08-04 07:49:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:49:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-08-04 07:49:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-08-04 07:49:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-08-04 07:49:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-08-04 07:49:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-08-04 07:49:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:49:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-08-04 07:49:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-08-04 07:49:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-08-04 07:49:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-08-04 07:49:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-08-04 07:49:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:49:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-08-04 07:49:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-08-04 07:49:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-08-04 07:49:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-08-04 07:49:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-08-04 07:49:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-08-04 07:49:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-08-04 07:49:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-08-04 07:49:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-08-04 07:49:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-08-04 07:49:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-08-04 07:49:48 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-08-04 07:49:48 INFO tclean::::casa getSummary call: fullsummary=False 2026-08-04 07:49:48 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-08-04 07:49:48 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-08-04 07:49:49 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-08-04 07:49:49 INFO tclean::::casa Task tclean complete. Start time: 2026-08-04 07:49:37.954761 End time: 2026-08-04 07:49:49.357972 2026-08-04 07:49:49 INFO tclean::::casa ##### End Task: tclean ##### 2026-08-04 07:49:49 INFO tclean::::casa ########################################## 2026-08-04 07:49:49 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-08-04 07:49:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:49:49 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-08-04 07:49:49 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-08-04 07:49:49 INFO ImageFitter::fit ****** Fit performed at Tue Aug 4 07:49:49 2026****** 2026-08-04 07:49:49 INFO ImageFitter::fit+ 2026-08-04 07:49:49 INFO ImageFitter::fit+ Input parameters --- 2026-08-04 07:49:49 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-08-04 07:49:49 INFO ImageFitter::fit+ --- region: 2026-08-04 07:49:49 INFO ImageFitter::fit+ --- channel: 0 2026-08-04 07:49:49 INFO ImageFitter::fit+ --- stokes: I 2026-08-04 07:49:49 INFO ImageFitter::fit+ --- mask: 2026-08-04 07:49:49 INFO ImageFitter::fit+ --- include pixel range: [] 2026-08-04 07:49:49 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-08-04 07:49:49 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-08-04 07:49:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:49:49 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-08-04 07:49:49 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ Position --- 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ Flux --- 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-08-04 07:49:49 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-08-04 07:49:49 INFO imstat::::casa ########################################## 2026-08-04 07:49:49 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-08-04 07:49:49 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-08-04 07:49:49 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-08-04 07:49:49 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-08-04 07:49:49 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-08-04 07:49:49 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-08-04 07:49:49 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-08-04 07:49:49 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-08-04 07:49:49 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-08-04 07:49:49 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-08-04 07:49:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-08-04 07:49:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-08-04 07:49:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-08-04 07:49:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-08-04 07:49:49 INFO imstat:::: Values --- 2026-08-04 07:49:49 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-08-04 07:49:49 INFO imstat:::: -- number of points [npts]: 65536 2026-08-04 07:49:49 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-08-04 07:49:49 INFO imstat:::: -- minimum value [min]: -7.77956e-05 Jy/beam 2026-08-04 07:49:49 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-08-04 07:49:49 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-08-04 07:49:49 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-08-04 07:49:49 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-08-04 07:49:49 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-08-04 07:49:49 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-08-04 07:49:49 INFO imstat:::: Statistics --- 2026-08-04 07:49:49 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-08-04 07:49:49 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-08-04 07:49:49 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-08-04 07:49:49 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-08-04 07:49:49 INFO imstat:::: -- Median of the pixel values [median]: -1.86648e-05 Jy/beam 2026-08-04 07:49:49 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73536e-05 Jy/beam 2026-08-04 07:49:49 INFO imstat:::: -- IQR [quartile]: 3.5639e-05 Jy/beam 2026-08-04 07:49:49 INFO imstat:::: -- First quartile [q1]: -3.45152e-05 Jy/beam 2026-08-04 07:49:49 INFO imstat:::: -- Third quartile [q3]: 1.12373e-06 Jy/beam 2026-08-04 07:49:49 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-08-04 07:49:49 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-08-04 07:49:49 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-08-04 07:49:49 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-08-04 07:49:49 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-08-04 07:49:49 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-08-04 07:49:49 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.779562e-05 4.999996e+00 2026-08-04 07:49:49 INFO imstat::::casa Task imstat complete. Start time: 2026-08-04 07:49:49.440733 End time: 2026-08-04 07:49:49.473780 2026-08-04 07:49:49 INFO imstat::::casa ##### End Task: imstat ##### 2026-08-04 07:49:49 INFO imstat::::casa ########################################## . ---------------------------------------------------------------------- Ran 27 tests in 1548.355s OK Generating XML reports...