2026-07-17 23:53:02 INFO ::casa Using user configuration file /home/casatest/.casa/config.py 2026-07-17 23:53:02 INFO ::casa loaded config file : /wheeldirectory/casa-6.7.6-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casaconfig/config.py 2026-07-17 23:53:02 INFO ::casa loaded config file : /home/casatest/.casa/config.py 2026-07-17 23:53:02 INFO ::casa 2026-07-17 23:53:02 INFO ::casa config values 2026-07-17 23:53:02 INFO ::casa agg = False 2026-07-17 23:53:02 INFO ::casa cachedir = '/home/casatest/.casa' 2026-07-17 23:53:02 INFO ::casa casaconfig_verbose = 1 2026-07-17 23:53:02 INFO ::casa colors = 'Neutral' 2026-07-17 23:53:02 INFO ::casa data_auto_update = False 2026-07-17 23:53:02 INFO ::casa data_update_interval = 1 2026-07-17 23:53:02 INFO ::casa datapath = ['/opt/casa/data/master', '/opt/casa/data/casatestdata'] 2026-07-17 23:53:02 INFO ::casa iplog = False 2026-07-17 23:53:02 INFO ::casa iplogfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/ipython-20260717-235257.log' 2026-07-17 23:53:02 INFO ::casa log2term = True 2026-07-17 23:53:02 INFO ::casa logfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/casa-20260717-235257.log' 2026-07-17 23:53:02 INFO ::casa measures_auto_update = False 2026-07-17 23:53:02 INFO ::casa measures_site = ['https://www.astron.nl/iers/', 'https://go.nrao.edu/iers/'] 2026-07-17 23:53:02 INFO ::casa measures_site_interval = 2 2026-07-17 23:53:02 INFO ::casa measures_update_interval = 1 2026-07-17 23:53:02 INFO ::casa measurespath = '/opt/casa/data/master' 2026-07-17 23:53:02 INFO ::casa nogui = False 2026-07-17 23:53:02 INFO ::casa nologfile = False 2026-07-17 23:53:02 INFO ::casa nologger = True 2026-07-17 23:53:02 INFO ::casa pipeline = False 2026-07-17 23:53:02 INFO ::casa skipnetworkcheck = False 2026-07-17 23:53:02 INFO ::casa startupfile = '/home/casatest/.casa/startup.py' 2026-07-17 23:53:02 INFO ::casa user_site = False 2026-07-17 23:53:02 INFO ::casa 2026-07-17 23:53:02 INFO ::casa casarundata version is unknown, this is probably a legacy version not installed by casaconfig 2026-07-17 23:53:02 INFO ::casa measures version is unknown, this is probably a legacy version not installed by casaconfig 2026-07-17 23:53:02 INFO ::casa 2026-07-17 23:53:02 INFO ::casa Checking Measures tables in data repository sub-directory /opt/casa/data/master/geodetic 2026-07-17 23:53:02 INFO ::casa IERSeop2000 (version date, last date in table (UTC)): 2026/07/02/15:15, 2026/06/02/00:00:00 2026-07-17 23:53:02 INFO ::casa IERSeop97 (version date, last date in table (UTC)): 2026/07/02/15:15, 2026/06/02/00:00:00 2026-07-17 23:53:02 INFO ::casa IERSpredict (version date, last date in table (UTC)): 2026/07/16/15:15, 2026/10/14/00:00:00 2026-07-17 23:53:02 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 6.7.6.11 -- Common Astronomy Software Applications [6.7.6.11] 2026-07-17 23:53:02 INFO phaseshift::::casa ########################################## 2026-07-17 23:53:02 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:53:02 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'} ) 2026-07-17 23:53:03 INFO MSTransformManager::parseMsSpecParams Input file name is /opt/casa/data/casatestdata/unittest/phaseshift/split11.ms 2026-07-17 23:53:03 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:53:03 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshift11.ms 2026-07-17 23:53:03 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:53:03 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:53:03 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:53:03 INFO MSTransformManager::open Select data 2026-07-17 23:53:03 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:53:07 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-07-17 23:53:07 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 1h27m38.337s +5d25m38.886s' successfully parsed for field 0 2026-07-17 23:53:07 INFO phaseshift::::casa Shift phase center 2026-07-17 23:53:08 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:53:09 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:53:02.394188 End time: 2026-07-17 23:53:08.598727 2026-07-17 23:53:09 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:53:09 INFO phaseshift::::casa ########################################## .2026-07-17 23:53:09 INFO phaseshift::::casa ########################################## 2026-07-17 23:53:09 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:53:09 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'} ) 2026-07-17 23:53:09 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-07-17 23:53:09 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:53:09 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-07-17 23:53:09 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:53:09 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:53:09 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:53:09 INFO MSTransformManager::open Select data 2026-07-17 23:53:09 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:53:13 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-07-17 23:53:13 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 19h53m50 40d06m00' successfully parsed for field 0 2026-07-17 23:53:13 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 22h01m02 40d04m03' successfully parsed for field 2 2026-07-17 23:53:13 INFO phaseshift::::casa Shift phase center 2026-07-17 23:53:14 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:53:14 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:53:08.684502 End time: 2026-07-17 23:53:13.836277 2026-07-17 23:53:14 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:53:14 INFO phaseshift::::casa ########################################## .2026-07-17 23:53:14 INFO phaseshift::::casa ########################################## 2026-07-17 23:53:14 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:53:14 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'} ) 2026-07-17 23:53:14 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-07-17 23:53:14 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:53:14 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-07-17 23:53:14 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:53:14 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:53:14 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:53:14 INFO MSTransformManager::open Select data 2026-07-17 23:53:14 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:53:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-07-17 23:53:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 0 2026-07-17 23:53:19 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: Wrong field ID given: 3. This MeasurementSet has field IDs between 0 and 2 2026-07-17 23:53:19 INFO phaseshift::::casa Traceback (most recent call last): 2026-07-17 23:53:19 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.6-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-07-17 23:53:19 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'] ) 2026-07-17 23:53:19 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-07-17 23:53:19 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.6-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-07-17 23:53:19 INFO phaseshift::::casa+ mtlocal.open() 2026-07-17 23:53:19 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.6-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-07-17 23:53:19 INFO phaseshift::::casa+ return self._swigobj.open() 2026-07-17 23:53:19 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-07-17 23:53:19 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.6-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-07-17 23:53:19 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-07-17 23:53:19 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-07-17 23:53:19 INFO phaseshift::::casa+ RuntimeError: Wrong field ID given: 3. This MeasurementSet has field IDs between 0 and 2 2026-07-17 23:53:19 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:53:13.965892 End time: 2026-07-17 23:53:18.596821 2026-07-17 23:53:19 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:53:19 INFO phaseshift::::casa ########################################## .2026-07-17 23:53:19 INFO phaseshift::::casa ########################################## 2026-07-17 23:53:19 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:53:19 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'} ) 2026-07-17 23:53:19 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-07-17 23:53:19 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:53:19 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-07-17 23:53:19 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:53:19 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:53:19 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:53:19 INFO MSTransformManager::open Select data 2026-07-17 23:53:19 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:53:23 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-07-17 23:53:23 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 0 2026-07-17 23:53:23 INFO phaseshift::::casa Shift phase center 2026-07-17 23:53:24 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:53:24 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:53:18.678249 End time: 2026-07-17 23:53:24.454738 2026-07-17 23:53:24 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:53:24 INFO phaseshift::::casa ########################################## .2026-07-17 23:53:25 INFO phaseshift::::casa ########################################## 2026-07-17 23:53:25 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:53:25 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={'1': 'J2000 19h53m50 40d06m00', '2': 'J2000 22h01m02 40d04m03'} ) 2026-07-17 23:53:25 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-07-17 23:53:25 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:53:25 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-07-17 23:53:25 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:53:25 INFO MSTransformManager::parseDataSelParams field selection is 0,2 2026-07-17 23:53:25 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:53:25 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:53:25 INFO MSTransformManager::open Select data 2026-07-17 23:53:25 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:53:25 INFO MSTransformDataHandler::makeSelection 11536 out of 15344 rows are going to be considered due to the selection criteria. 2026-07-17 23:53:29 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-07-17 23:53:29 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 1 2026-07-17 23:53:29 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 22h01m02 40d04m03' successfully parsed for field 2 2026-07-17 23:53:29 INFO phaseshift::::casa Shift phase center 2026-07-17 23:53:30 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:53:30 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:53:24.591975 End time: 2026-07-17 23:53:29.725129 2026-07-17 23:53:30 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:53:30 INFO phaseshift::::casa ########################################## .2026-07-17 23:53:30 INFO phaseshift::::casa ########################################## 2026-07-17 23:53:30 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:53:30 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'} ) 2026-07-17 23:53:30 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-07-17 23:53:30 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:53:30 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-07-17 23:53:30 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:53:30 INFO MSTransformManager::parseDataSelParams field selection is 0,2 2026-07-17 23:53:30 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:53:30 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:53:30 INFO MSTransformManager::open Select data 2026-07-17 23:53:30 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:53:30 INFO MSTransformDataHandler::makeSelection 11536 out of 15344 rows are going to be considered due to the selection criteria. 2026-07-17 23:53:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-07-17 23:53:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m50 40d06m00' successfully parsed for field 0 2026-07-17 23:53:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 22h01m02 40d04m03' successfully parsed for field 2 2026-07-17 23:53:33 INFO phaseshift::::casa Shift phase center 2026-07-17 23:53:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:53:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:53:29.837914 End time: 2026-07-17 23:53:34.416592 2026-07-17 23:53:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:53:34 INFO phaseshift::::casa ########################################## .2026-07-17 23:53:35 INFO phaseshift::::casa ########################################## 2026-07-17 23:53:35 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:53:35 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' ) 2026-07-17 23:53:35 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-07-17 23:53:35 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:53:35 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-07-17 23:53:35 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:53:35 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:53:35 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:53:35 INFO MSTransformManager::open Select data 2026-07-17 23:53:35 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:53:38 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-17 23:53:38 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-07-17 23:53:38 INFO phaseshift::::casa Shift phase center 2026-07-17 23:53:40 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:53:40 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:53:34.505299 End time: 2026-07-17 23:53:39.702868 2026-07-17 23:53:40 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:53:40 INFO phaseshift::::casa ########################################## ..2026-07-17 23:53:40 INFO MeasIERS::fillMeas(MeasIERS::Files, Double) Requested JD 0 is outside the range of the IERS (Earth axis data) table. 2026-07-17 23:53:40 INFO MeasIERS::fillMeas(MeasIERS::Files, Double) + Calculations will proceed with less precision ..2026-07-17 23:53:40 SEVERE Error in QuantumHolder::fromString with input string "xxh53m50": Illegal input units or format 2026-07-17 23:53:40 SEVERE + in converting quantity from string 2026-07-17 23:53:40 SEVERE Exception Reported: Empty QuantumHolder argument for asQuantumDouble 2026-07-17 23:53:40 SEVERE Exception Reports: Empty QuantumHolder argument for asQuantumDouble 2026-07-17 23:53:40 SEVERE phaseshift::::casa *** Error measures.direction() failed for phasecenter string: BOGUS xxh53m50 40d06m00 when interpreting parameter 'phasecenter': ...2026-07-17 23:53:42 INFO phaseshift::::casa ########################################## 2026-07-17 23:53:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:53:42 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' ) 2026-07-17 23:53:42 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-07-17 23:53:42 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:53:42 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-07-17 23:53:42 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:53:42 INFO MSTransformManager::parseDataSelParams array selection is 1 2026-07-17 23:53:42 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:53:42 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:53:42 INFO MSTransformManager::open Select data 2026-07-17 23:53:42 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:53:42 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: MSSelectionNullSelection : The selected table has zero rows. 2026-07-17 23:53:42 INFO phaseshift::::casa Traceback (most recent call last): 2026-07-17 23:53:42 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.6-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-07-17 23:53:42 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'] ) 2026-07-17 23:53:42 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-07-17 23:53:42 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.6-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-07-17 23:53:42 INFO phaseshift::::casa+ mtlocal.open() 2026-07-17 23:53:42 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.6-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-07-17 23:53:42 INFO phaseshift::::casa+ return self._swigobj.open() 2026-07-17 23:53:42 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-07-17 23:53:42 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.6-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-07-17 23:53:42 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-07-17 23:53:42 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-07-17 23:53:42 INFO phaseshift::::casa+ RuntimeError: MSSelectionNullSelection : The selected table has zero rows. 2026-07-17 23:53:42 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:53:42.258407 End time: 2026-07-17 23:53:42.302305 2026-07-17 23:53:42 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:53:42 INFO phaseshift::::casa ########################################## 2026-07-17 23:53:42 INFO phaseshift::::casa ########################################## 2026-07-17 23:53:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:53:42 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' ) 2026-07-17 23:53:42 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-07-17 23:53:42 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:53:42 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-07-17 23:53:42 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:53:42 INFO MSTransformManager::parseDataSelParams array selection is 0 2026-07-17 23:53:42 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:53:42 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:53:42 INFO MSTransformManager::open Select data 2026-07-17 23:53:42 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:53:46 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-07-17 23:53:46 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-07-17 23:53:48 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-17 23:53:48 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-07-17 23:53:48 INFO phaseshift::::casa Shift phase center 2026-07-17 23:53:49 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:53:49 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:53:42.303365 End time: 2026-07-17 23:53:48.658891 2026-07-17 23:53:49 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:53:49 INFO phaseshift::::casa ########################################## .2026-07-17 23:53:50 INFO phaseshift::::casa ########################################## 2026-07-17 23:53:50 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:53:50 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' ) 2026-07-17 23:53:50 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-07-17 23:53:50 INFO MSTransformManager::parseMsSpecParams Data column is MODEL 2026-07-17 23:53:50 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-07-17 23:53:50 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:53:50 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:53:50 WARN MSTransformManager::checkDataColumnsToFill MODEL_DATA column requested but not available in input MS 2026-07-17 23:53:50 INFO MSTransformManager::open Select data 2026-07-17 23:53:50 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:53:50 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). 2026-07-17 23:53:50 INFO phaseshift::::casa Traceback (most recent call last): 2026-07-17 23:53:50 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.6-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-07-17 23:53:50 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'] ) 2026-07-17 23:53:50 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-07-17 23:53:50 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.6-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-07-17 23:53:50 INFO phaseshift::::casa+ mtlocal.open() 2026-07-17 23:53:50 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.6-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-07-17 23:53:50 INFO phaseshift::::casa+ return self._swigobj.open() 2026-07-17 23:53:50 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-07-17 23:53:50 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.6-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-07-17 23:53:50 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-07-17 23:53:50 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-07-17 23:53:50 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). 2026-07-17 23:53:50 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:53:49.632978 End time: 2026-07-17 23:53:49.666610 2026-07-17 23:53:50 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:53:50 INFO phaseshift::::casa ########################################## 2026-07-17 23:53:50 INFO phaseshift::::casa ########################################## 2026-07-17 23:53:50 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:53:50 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' ) 2026-07-17 23:53:50 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-07-17 23:53:50 INFO MSTransformManager::parseMsSpecParams Data column is DATA 2026-07-17 23:53:50 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-07-17 23:53:50 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:53:50 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:53:50 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:53:50 INFO MSTransformManager::open Select data 2026-07-17 23:53:50 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:53:52 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-07-17 23:53:52 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-07-17 23:53:54 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-17 23:53:54 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-07-17 23:53:54 INFO phaseshift::::casa Shift phase center 2026-07-17 23:53:55 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:53:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:53:49.667643 End time: 2026-07-17 23:53:55.168773 2026-07-17 23:53:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:53:55 INFO phaseshift::::casa ########################################## .2026-07-17 23:53:56 INFO phaseshift::::casa ########################################## 2026-07-17 23:53:56 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:53:56 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' ) 2026-07-17 23:53:56 INFO MSTransformManager::parseMsSpecParams Input file name is Itziar_copy.ms 2026-07-17 23:53:56 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:53:56 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-07-17 23:53:56 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:53:56 INFO MSTransformManager::parseDataSelParams field selection is 2 2026-07-17 23:53:56 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:53:56 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:53:56 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-17 23:53:56 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-17 23:53:56 INFO MSTransformManager::open Select data 2026-07-17 23:53:56 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:53:56 INFO MSTransformDataHandler::makeSelection 6125 out of 245000 rows are going to be considered due to the selection criteria. 2026-07-17 23:53:59 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-17 23:53:59 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 00h00m01 -29d55m40' successfully parsed 2026-07-17 23:53:59 INFO phaseshift::::casa Shift phase center 2026-07-17 23:54:00 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:54:00 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:53:56.211508 End time: 2026-07-17 23:54:00.413250 2026-07-17 23:54:00 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:54:00 INFO phaseshift::::casa ########################################## .2026-07-17 23:54:01 INFO phaseshift::::casa ########################################## 2026-07-17 23:54:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:54:01 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' ) 2026-07-17 23:54:01 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-07-17 23:54:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:54:01 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-07-17 23:54:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:54:01 INFO MSTransformManager::parseDataSelParams scan intent selection is *FLUX* 2026-07-17 23:54:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:54:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:54:01 INFO MSTransformManager::open Select data 2026-07-17 23:54:01 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:54:01 INFO MSTransformDataHandler::makeSelection 570 out of 6270 rows are going to be considered due to the selection criteria. 2026-07-17 23:54:05 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-07-17 23:54:05 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-07-17 23:54:06 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-17 23:54:06 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-07-17 23:54:06 INFO phaseshift::::casa Shift phase center 2026-07-17 23:54:07 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:54:07 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:54:01.373196 End time: 2026-07-17 23:54:07.206712 2026-07-17 23:54:07 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:54:07 INFO phaseshift::::casa ########################################## .2026-07-17 23:54:08 INFO phaseshift::::casa ########################################## 2026-07-17 23:54:08 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:54:08 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' ) 2026-07-17 23:54:08 INFO MSTransformManager::parseMsSpecParams Input file name is mms_copy.mms 2026-07-17 23:54:08 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:54:08 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-07-17 23:54:08 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:54:08 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:54:08 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:54:08 INFO MSTransformManager::open Select data 2026-07-17 23:54:08 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:54:12 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-17 23:54:12 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 05h30m48 13d31m48' successfully parsed 2026-07-17 23:54:12 INFO phaseshift::::casa Shift phase center 2026-07-17 23:54:13 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:54:13 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:54:08.202995 End time: 2026-07-17 23:54:12.941571 2026-07-17 23:54:13 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:54:13 INFO phaseshift::::casa ########################################## .2026-07-17 23:54:14 INFO phaseshift::::casa ########################################## 2026-07-17 23:54:14 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:54:14 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' ) 2026-07-17 23:54:14 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-07-17 23:54:14 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:54:14 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-07-17 23:54:14 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:54:14 INFO MSTransformManager::parseDataSelParams observation selection is 1 2026-07-17 23:54:14 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:54:14 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:54:14 INFO MSTransformManager::open Select data 2026-07-17 23:54:14 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:54:14 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: MSSelectionNullSelection : The selected table has zero rows. 2026-07-17 23:54:14 INFO phaseshift::::casa Traceback (most recent call last): 2026-07-17 23:54:14 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.6-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-07-17 23:54:14 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'] ) 2026-07-17 23:54:14 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-07-17 23:54:14 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.6-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-07-17 23:54:14 INFO phaseshift::::casa+ mtlocal.open() 2026-07-17 23:54:14 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.6-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-07-17 23:54:14 INFO phaseshift::::casa+ return self._swigobj.open() 2026-07-17 23:54:14 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-07-17 23:54:14 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.6-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 127, in open 2026-07-17 23:54:14 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-07-17 23:54:14 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-07-17 23:54:14 INFO phaseshift::::casa+ RuntimeError: MSSelectionNullSelection : The selected table has zero rows. 2026-07-17 23:54:14 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:54:13.926561 End time: 2026-07-17 23:54:13.968836 2026-07-17 23:54:14 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:54:14 INFO phaseshift::::casa ########################################## 2026-07-17 23:54:14 INFO phaseshift::::casa ########################################## 2026-07-17 23:54:14 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:54:14 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' ) 2026-07-17 23:54:14 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-07-17 23:54:14 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:54:14 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-07-17 23:54:14 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:54:14 INFO MSTransformManager::parseDataSelParams observation selection is 0 2026-07-17 23:54:14 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:54:14 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:54:14 INFO MSTransformManager::open Select data 2026-07-17 23:54:14 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:54:17 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-07-17 23:54:17 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-07-17 23:54:19 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-17 23:54:19 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-07-17 23:54:19 INFO phaseshift::::casa Shift phase center 2026-07-17 23:54:19 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:54:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:54:13.970084 End time: 2026-07-17 23:54:19.505822 2026-07-17 23:54:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:54:20 INFO phaseshift::::casa ########################################## .2026-07-17 23:54:20 INFO phaseshift::::casa ########################################## 2026-07-17 23:54:20 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:54:20 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-07-17 23:54:21 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-07-17 23:54:21 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:54:21 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-07-17 23:54:21 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:54:21 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:54:21 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:54:21 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-17 23:54:21 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-17 23:54:21 INFO MSTransformManager::open Select data 2026-07-17 23:54:21 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:54:25 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-17 23:54:25 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-07-17 23:54:25 INFO phaseshift::::casa Shift phase center 2026-07-17 23:54:27 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:54:27 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:54:20.493378 End time: 2026-07-17 23:54:26.856272 2026-07-17 23:54:27 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:54:27 INFO phaseshift::::casa ########################################## .2026-07-17 23:54:28 INFO phaseshift::::casa ########################################## 2026-07-17 23:54:28 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:54:28 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='' ) 2026-07-17 23:54:28 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: phasecenter parameter must be specified 2026-07-17 23:54:28 INFO phaseshift::::casa Traceback (most recent call last): 2026-07-17 23:54:28 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.6-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-07-17 23:54:28 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'] ) 2026-07-17 23:54:28 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-07-17 23:54:28 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.6-11-py3.12.el9/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 31, in phaseshift 2026-07-17 23:54:28 INFO phaseshift::::casa+ raise ValueError("phasecenter parameter must be specified") 2026-07-17 23:54:28 INFO phaseshift::::casa+ ValueError: phasecenter parameter must be specified 2026-07-17 23:54:28 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:54:27.762493 End time: 2026-07-17 23:54:27.763650 2026-07-17 23:54:28 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:54:28 INFO phaseshift::::casa ########################################## 2026-07-17 23:54:28 INFO phaseshift::::casa ########################################## 2026-07-17 23:54:28 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:54:28 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' ) 2026-07-17 23:54:28 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-07-17 23:54:28 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:54:28 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-07-17 23:54:28 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:54:28 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:54:28 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:54:28 INFO MSTransformManager::open Select data 2026-07-17 23:54:28 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:54:31 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-07-17 23:54:31 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-07-17 23:54:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-17 23:54:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -08d23m35' successfully parsed 2026-07-17 23:54:33 INFO phaseshift::::casa Shift phase center 2026-07-17 23:54:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:54:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:54:27.764794 End time: 2026-07-17 23:54:33.742485 2026-07-17 23:54:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:54:34 INFO phaseshift::::casa ########################################## .2026-07-17 23:54:35 INFO phaseshift::::casa ########################################## 2026-07-17 23:54:35 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:54:35 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='00h06m14 -08d23m35' ) 2026-07-17 23:54:35 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-07-17 23:54:35 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:54:35 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-07-17 23:54:35 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:54:35 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:54:35 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:54:35 INFO MSTransformManager::open Select data 2026-07-17 23:54:35 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:54:37 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-07-17 23:54:37 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-07-17 23:54:39 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-17 23:54:39 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center '00h06m14 -08d23m35' successfully parsed 2026-07-17 23:54:39 INFO phaseshift::::casa Shift phase center 2026-07-17 23:54:40 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:54:40 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:54:34.800568 End time: 2026-07-17 23:54:39.808221 2026-07-17 23:54:40 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:54:40 INFO phaseshift::::casa ########################################## .2026-07-17 23:54:41 INFO phaseshift::::casa ########################################## 2026-07-17 23:54:41 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:54:41 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' ) 2026-07-17 23:54:41 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-07-17 23:54:41 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:54:41 INFO MSTransformManager::parseMsSpecParams Output file name is post_phaseshift.ms 2026-07-17 23:54:41 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:54:41 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:54:41 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:54:41 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-17 23:54:41 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-17 23:54:41 INFO MSTransformManager::open Select data 2026-07-17 23:54:41 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:54:44 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-17 23:54:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-07-17 23:54:44 INFO phaseshift::::casa Shift phase center 2026-07-17 23:54:46 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:54:46 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:54:40.858373 End time: 2026-07-17 23:54:45.927268 2026-07-17 23:54:46 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:54:46 INFO phaseshift::::casa ########################################## 2026-07-17 23:54:46 INFO tclean::::casa ########################################## 2026-07-17 23:54:46 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-17 23:54:46 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, 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 ) 2026-07-17 23:54:46 INFO tclean::::casa Verifying Input Parameters 2026-07-17 23:54:46 INFO SynthesisImagerVi2::selectData MS : datacopy.ms | [Opened in readonly mode] 2026-07-17 23:54:46 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-07-17 23:54:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_pre] : 2026-07-17 23:54:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_pre] : 2026-07-17 23:54:46 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-17 23:54:46 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-07-17 23:54:46 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_pre] with ftmachine : wprojectft 2026-07-17 23:54:46 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 10.88 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-17 23:54:46 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-17 23:54:46 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_pre] : hogbom 2026-07-17 23:54:46 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-17 23:54:47 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-07-17 23:54:47 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-07-17 23:54:47 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-07-17 23:54:47 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-07-17 23:55:12 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 2026-07-17 23:55:12 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 15884 MB 0%....10....20....30....40....50....60....70....80....90....100% 2026-07-17 23:55:46 INFO SIImageStore::calcSensitivity [im2_pre] Theoretical sensitivity (Jy/bm):0.00204403 2026-07-17 23:55:46 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.096047 2026-07-17 23:55:46 INFO SIImageStore::printBeamSet Beam : 54.8469 arcsec, 48.7749 arcsec, 82.835 deg 2026-07-17 23:55:46 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-17 23:55:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-17 23:55:50 INFO task_tclean::SDAlgorithmBase::restore [im2_pre] : Restoring model image. 2026-07-17 23:55:50 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. 2026-07-17 23:55:54 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.8469 arcsec, 48.7749 arcsec, 82.835 deg 2026-07-17 23:55:54 INFO tclean::::casa Searching for images with prefix 'im2_pre'... Found these, writing history into them: ['im2_pre.image', 'im2_pre.sumwt', 'im2_pre.residual', 'im2_pre.model', 'im2_pre.psf', 'im2_pre.pb'] 2026-07-17 23:55:55 INFO tclean::::casa Task tclean complete. Start time: 2026-07-17 23:54:46.005987 End time: 2026-07-17 23:55:55.265132 2026-07-17 23:55:55 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-17 23:55:55 INFO tclean::::casa ########################################## 2026-07-17 23:55:55 INFO tclean::::casa ########################################## 2026-07-17 23:55:55 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-17 23:55:55 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, 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 ) 2026-07-17 23:55:55 INFO tclean::::casa Verifying Input Parameters 2026-07-17 23:55:55 INFO SynthesisImagerVi2::selectData MS : post_phaseshift.ms | [Opened in readonly mode] 2026-07-17 23:55:55 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-07-17 23:55:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift] : 2026-07-17 23:55:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift] : 2026-07-17 23:55:56 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-17 23:55:56 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-07-17 23:55:56 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_post_phaseshift] with ftmachine : wprojectft 2026-07-17 23:55:56 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 10.87 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-17 23:55:56 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-17 23:55:56 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_post_phaseshift] : hogbom 2026-07-17 23:55:56 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-17 23:55:56 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-07-17 23:55:56 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-07-17 23:55:56 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-07-17 23:55:56 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-07-17 23:56:19 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 2026-07-17 23:56:19 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 15884 MB 2026-07-17 23:56:24 INFO SIImageStore::calcSensitivity [im2_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00204403 2026-07-17 23:56:25 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.092536 2026-07-17 23:56:25 INFO SIImageStore::printBeamSet Beam : 54.3737 arcsec, 48.741 arcsec, 82.2249 deg 2026-07-17 23:56:25 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-17 23:56:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-17 23:56:29 INFO task_tclean::SDAlgorithmBase::restore [im2_post_phaseshift] : Restoring model image. 2026-07-17 23:56:29 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. 2026-07-17 23:56:30 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.3737 arcsec, 48.741 arcsec, 82.2249 deg 2026-07-17 23:56:30 INFO tclean::::casa Searching for images with prefix 'im2_post_phaseshift'... Found these, writing history into them: ['im2_post_phaseshift.sumwt', 'im2_post_phaseshift.model', 'im2_post_phaseshift.residual', 'im2_post_phaseshift.pb', 'im2_post_phaseshift.psf', 'im2_post_phaseshift.image'] 2026-07-17 23:56:31 INFO tclean::::casa Task tclean complete. Start time: 2026-07-17 23:55:55.312197 End time: 2026-07-17 23:56:31.348482 2026-07-17 23:56:31 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-17 23:56:31 INFO tclean::::casa ########################################## 2026-07-17 23:56:31 INFO tclean::::casa ########################################## 2026-07-17 23:56:31 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-17 23:56:31 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, 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 ) 2026-07-17 23:56:31 INFO tclean::::casa Verifying Input Parameters 2026-07-17 23:56:31 INFO SynthesisImagerVi2::selectData MS : post_phaseshift.ms | [Opened in readonly mode] 2026-07-17 23:56:31 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-07-17 23:56:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift_tclean_phasecenter] : 2026-07-17 23:56:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift_tclean_phasecenter] : 2026-07-17 23:56:32 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-17 23:56:32 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-07-17 23:56:32 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_post_phaseshift_tclean_phasecenter] with ftmachine : wprojectft 2026-07-17 23:56:32 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 10.86 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-17 23:56:32 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-17 23:56:32 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_post_phaseshift_tclean_phasecenter] : hogbom 2026-07-17 23:56:32 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-17 23:56:32 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-07-17 23:56:32 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-07-17 23:56:32 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-07-17 23:56:32 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-07-17 23:56:55 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 2026-07-17 23:56:55 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 15884 MB 2026-07-17 23:56:57 INFO SIImageStore::calcSensitivity [im2_post_phaseshift_tclean_phasecenter] Theoretical sensitivity (Jy/bm):0.00204403 2026-07-17 23:56:58 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.089624 2026-07-17 23:56:58 INFO SIImageStore::printBeamSet Beam : 54.8469 arcsec, 48.775 arcsec, 82.8349 deg 2026-07-17 23:56:58 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-17 23:57:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-17 23:57:03 INFO task_tclean::SDAlgorithmBase::restore [im2_post_phaseshift_tclean_phasecenter] : Restoring model image. 2026-07-17 23:57:03 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. 2026-07-17 23:57:05 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.8469 arcsec, 48.775 arcsec, 82.8349 deg 2026-07-17 23:57:06 INFO tclean::::casa Searching for images with prefix 'im2_post_phaseshift_tclean_phasecenter'... Found these, writing history into them: ['im2_post_phaseshift_tclean_phasecenter.model', 'im2_post_phaseshift_tclean_phasecenter.image', 'im2_post_phaseshift_tclean_phasecenter.residual', 'im2_post_phaseshift_tclean_phasecenter.sumwt', 'im2_post_phaseshift_tclean_phasecenter.pb', 'im2_post_phaseshift_tclean_phasecenter.psf'] 2026-07-17 23:57:07 INFO tclean::::casa Task tclean complete. Start time: 2026-07-17 23:56:31.394161 End time: 2026-07-17 23:57:06.577712 2026-07-17 23:57:07 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-17 23:57:07 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} .2026-07-17 23:57:08 INFO phaseshift::::casa ########################################## 2026-07-17 23:57:08 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:57:08 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' ) 2026-07-17 23:57:08 INFO MSTransformManager::parseMsSpecParams Input file name is ngc_copy.ms 2026-07-17 23:57:08 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:57:08 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-07-17 23:57:08 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:57:08 INFO MSTransformManager::parseDataSelParams spw selection is 1 2026-07-17 23:57:08 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:57:08 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:57:08 INFO MSTransformManager::initDataSelectionParams Selected SPWs Ids are Axis Lengths: [1, 4] (NB: Matrix in Row/Column order) 2026-07-17 23:57:08 INFO MSTransformManager::initDataSelectionParams+ [1, 0, 4, 1] 2026-07-17 23:57:08 INFO MSTransformManager::open Select data 2026-07-17 23:57:08 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:57:08 INFO MSTransformDataHandler::makeSelection 13338 out of 26676 rows are going to be considered due to the selection criteria. 2026-07-17 23:57:11 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-17 23:57:11 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 23h11m54 61d10m54' successfully parsed 2026-07-17 23:57:11 INFO phaseshift::::casa Shift phase center 2026-07-17 23:57:12 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:57:12 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:57:07.958044 End time: 2026-07-17 23:57:11.770091 2026-07-17 23:57:12 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:57:12 INFO phaseshift::::casa ########################################## .2026-07-17 23:57:13 INFO phaseshift::::casa ########################################## 2026-07-17 23:57:13 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:57:13 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-07-17 23:57:13 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-07-17 23:57:13 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:57:13 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-07-17 23:57:13 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:57:13 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:57:13 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:57:13 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-17 23:57:13 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-17 23:57:13 INFO MSTransformManager::open Select data 2026-07-17 23:57:13 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:57:16 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-17 23:57:16 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-07-17 23:57:16 INFO phaseshift::::casa Shift phase center 2026-07-17 23:57:18 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:57:18 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:57:12.679033 End time: 2026-07-17 23:57:18.155575 2026-07-17 23:57:18 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:57:18 INFO phaseshift::::casa ########################################## .2026-07-17 23:57:19 INFO phaseshift::::casa ########################################## 2026-07-17 23:57:19 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:57:19 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' ) 2026-07-17 23:57:19 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-17 23:57:19 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:57:19 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-17 23:57:19 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:57:19 INFO MSTransformManager::parseDataSelParams field selection is 0 2026-07-17 23:57:19 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:57:19 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:57:19 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-17 23:57:19 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-17 23:57:19 INFO MSTransformManager::open Select data 2026-07-17 23:57:19 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:57:19 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-07-17 23:57:22 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-17 23:57:22 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-07-17 23:57:22 INFO phaseshift::::casa Shift phase center 2026-07-17 23:57:23 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:57:23 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:57:18.588658 End time: 2026-07-17 23:57:22.857306 2026-07-17 23:57:23 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:57:23 INFO phaseshift::::casa ########################################## 2026-07-17 23:57:23 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-07-17 23:57:23 INFO tclean::::casa ########################################## 2026-07-17 23:57:23 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-17 23:57:23 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, 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 ) 2026-07-17 23:57:23 INFO tclean::::casa Verifying Input Parameters 2026-07-17 23:57:23 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-17 23:57:23 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-07-17 23:57:23 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-17 23:57:23 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-17 23:57:23 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-17 23:57:23 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99981e+08] at [0] with increment [9.99998e+07] 2026-07-17 23:57:23 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-17 23:57:23 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.86 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-17 23:57:23 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-17 23:57:23 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-17 23:57:23 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-17 23:57:24 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-07-17 23:57:24 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02329 2026-07-17 23:57:24 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-07-17 23:57:24 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-17 23:57:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-17 23:57:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-17 23:57:26 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-17 23:57:26 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-17 23:57:26 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-17 23:57:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6347251534461975, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:57:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.634725, CycleNiter=20, Gain=0.3 2026-07-17 23:57:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-17 23:57:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-17 23:57:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-17 23:57:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-17 23:57:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07467404007911682, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:57:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.074674, CycleNiter=14, Gain=0.3 2026-07-17 23:57:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-07-17 23:57:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-17 23:57:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-17 23:57:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-07-17 23:57:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00878525897860527, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:57:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00878526, CycleNiter=8, Gain=0.3 2026-07-17 23:57:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-07-17 23:57:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-17 23:57:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-17 23:57:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814184, over full image : 0.00814184 2026-07-17 23:57:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0010335649130865932, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:57:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00103356, CycleNiter=2, Gain=0.3 2026-07-17 23:57:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814184->0.00279265, Reached cycleniter. 2026-07-17 23:57:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-17 23:57:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-17 23:57:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279276, over full image : 0.00279276 2026-07-17 23:57:34 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-17 23:57:34 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-17 23:57:34 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-17 23:57:35 INFO SIImageStore::restore Beam for chan : 0 : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-07-17 23:57:35 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-17 23:57:36 INFO tclean::::casa Task tclean complete. Start time: 2026-07-17 23:57:23.041285 End time: 2026-07-17 23:57:36.464628 2026-07-17 23:57:36 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-17 23:57:36 INFO tclean::::casa ########################################## 2026-07-17 23:57:36 INFO imstat::::casa ########################################## 2026-07-17 23:57:36 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-17 23:57:36 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 ) 2026-07-17 23:57:36 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-17 23:57:36 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-17 23:57:36 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-17 23:57:36 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-17 23:57:36 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-17 23:57:36 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) 2026-07-17 23:57:37 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-17 23:57:37 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-17 23:57:37 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-17 23:57:37 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-17 23:57:37 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz 2026-07-17 23:57:37 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz 2026-07-17 23:57:37 INFO imstat:::: Values --- 2026-07-17 23:57:37 INFO imstat:::: -- flux density [flux]: 4.99409 Jy 2026-07-17 23:57:37 INFO imstat:::: -- number of points [npts]: 65536 2026-07-17 23:57:37 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-17 23:57:37 INFO imstat:::: -- minimum value [min]: -0.00012283 Jy/beam 2026-07-17 23:57:37 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-07-17 23:57:37 INFO imstat:::: -- position of min value (pixel) [minpos]: [100, 55, 0, 0] 2026-07-17 23:57:37 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 9.99981e+08Hz 2026-07-17 23:57:37 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:09.479, +39.56.47.897, I, 9.99981e+08Hz 2026-07-17 23:57:37 INFO imstat:::: -- Sum of pixel values [sum]: 605.961 Jy/beam 2026-07-17 23:57:37 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1516.75 Jy/beam.Jy/beam 2026-07-17 23:57:37 INFO imstat:::: Statistics --- 2026-07-17 23:57:37 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00924623 Jy/beam 2026-07-17 23:57:37 INFO imstat:::: -- Variance of the pixel values : 0.0230586 Jy/beam 2026-07-17 23:57:37 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.15185 Jy/beam 2026-07-17 23:57:37 INFO imstat:::: -- Root mean square [rms]: 0.152131 Jy/beam 2026-07-17 23:57:37 INFO imstat:::: -- Median of the pixel values [median]: -2.09007e-05 Jy/beam 2026-07-17 23:57:37 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 3.00259e-05 Jy/beam 2026-07-17 23:57:37 INFO imstat:::: -- IQR [quartile]: 6.1616e-05 Jy/beam 2026-07-17 23:57:37 INFO imstat:::: -- First quartile [q1]: -4.79744e-05 Jy/beam 2026-07-17 23:57:37 INFO imstat:::: -- Third quartile [q3]: 1.36416e-05 Jy/beam 2026-07-17 23:57:37 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-17 23:57:37 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-17 23:57:37 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-17 23:57:37 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-17 23:57:37 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-17 23:57:37 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-17 23:57:37 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 2026-07-17 23:57:37 INFO imstat::::casa Task imstat complete. Start time: 2026-07-17 23:57:36.485593 End time: 2026-07-17 23:57:36.514796 2026-07-17 23:57:37 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-17 23:57:37 INFO imstat::::casa ########################################## 2026-07-17 23:57:37 INFO phaseshift::::casa ########################################## 2026-07-17 23:57:37 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:57:37 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' ) 2026-07-17 23:57:37 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-17 23:57:37 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:57:37 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-17 23:57:37 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:57:37 INFO MSTransformManager::parseDataSelParams field selection is fake 2026-07-17 23:57:37 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:57:37 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:57:37 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-17 23:57:37 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-17 23:57:37 INFO MSTransformManager::open Select data 2026-07-17 23:57:37 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:57:37 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-07-17 23:57:40 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-17 23:57:40 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-07-17 23:57:40 INFO phaseshift::::casa Shift phase center 2026-07-17 23:57:40 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:57:40 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:57:36.527288 End time: 2026-07-17 23:57:40.320858 2026-07-17 23:57:40 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:57:40 INFO phaseshift::::casa ########################################## 2026-07-17 23:57:40 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data.ms... 2026-07-17 23:57:40 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-07-17 23:57:40 INFO tclean::::casa ########################################## 2026-07-17 23:57:40 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-17 23:57:40 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, 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 ) 2026-07-17 23:57:40 INFO tclean::::casa Verifying Input Parameters 2026-07-17 23:57:40 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-17 23:57:40 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-07-17 23:57:40 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-17 23:57:40 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-17 23:57:40 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-17 23:57:40 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99981e+08] at [0] with increment [9.99998e+07] 2026-07-17 23:57:40 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-17 23:57:40 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.86 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-17 23:57:40 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-17 23:57:40 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-17 23:57:40 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-17 23:57:42 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-07-17 23:57:42 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025256 2026-07-17 23:57:42 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-07-17 23:57:42 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-17 23:57:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-17 23:57:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-17 23:57:44 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-17 23:57:44 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-17 23:57:44 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-17 23:57:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6347251534461975, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:57:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.634725, CycleNiter=20, Gain=0.3 2026-07-17 23:57:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-17 23:57:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-17 23:57:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-17 23:57:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-17 23:57:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07467404007911682, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:57:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.074674, CycleNiter=14, Gain=0.3 2026-07-17 23:57:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-07-17 23:57:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-17 23:57:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-17 23:57:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-07-17 23:57:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00878525897860527, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:57:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00878526, CycleNiter=8, Gain=0.3 2026-07-17 23:57:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-07-17 23:57:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-17 23:57:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-17 23:57:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814184, over full image : 0.00814184 2026-07-17 23:57:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0010335649130865932, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:57:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00103356, CycleNiter=2, Gain=0.3 2026-07-17 23:57:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814184->0.00279265, Reached cycleniter. 2026-07-17 23:57:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-17 23:57:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-17 23:57:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279276, over full image : 0.00279276 2026-07-17 23:57:50 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-17 23:57:50 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-17 23:57:50 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-17 23:57:51 INFO SIImageStore::restore Beam for chan : 0 : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-07-17 23:57:51 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-17 23:57:52 INFO tclean::::casa Task tclean complete. Start time: 2026-07-17 23:57:40.377141 End time: 2026-07-17 23:57:52.291745 2026-07-17 23:57:52 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-17 23:57:52 INFO tclean::::casa ########################################## 2026-07-17 23:57:52 INFO imstat::::casa ########################################## 2026-07-17 23:57:52 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-17 23:57:52 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 ) 2026-07-17 23:57:52 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-17 23:57:52 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-17 23:57:52 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-17 23:57:52 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-17 23:57:52 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-17 23:57:52 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) 2026-07-17 23:57:52 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-17 23:57:52 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-17 23:57:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-17 23:57:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-17 23:57:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz 2026-07-17 23:57:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz 2026-07-17 23:57:52 INFO imstat:::: Values --- 2026-07-17 23:57:52 INFO imstat:::: -- flux density [flux]: 4.99409 Jy 2026-07-17 23:57:52 INFO imstat:::: -- number of points [npts]: 65536 2026-07-17 23:57:52 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-17 23:57:52 INFO imstat:::: -- minimum value [min]: -0.00012283 Jy/beam 2026-07-17 23:57:52 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-07-17 23:57:52 INFO imstat:::: -- position of min value (pixel) [minpos]: [100, 55, 0, 0] 2026-07-17 23:57:52 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 9.99981e+08Hz 2026-07-17 23:57:52 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:09.479, +39.56.47.897, I, 9.99981e+08Hz 2026-07-17 23:57:52 INFO imstat:::: -- Sum of pixel values [sum]: 605.961 Jy/beam 2026-07-17 23:57:52 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1516.75 Jy/beam.Jy/beam 2026-07-17 23:57:52 INFO imstat:::: Statistics --- 2026-07-17 23:57:52 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00924623 Jy/beam 2026-07-17 23:57:52 INFO imstat:::: -- Variance of the pixel values : 0.0230586 Jy/beam 2026-07-17 23:57:52 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.15185 Jy/beam 2026-07-17 23:57:52 INFO imstat:::: -- Root mean square [rms]: 0.152131 Jy/beam 2026-07-17 23:57:52 INFO imstat:::: -- Median of the pixel values [median]: -2.09007e-05 Jy/beam 2026-07-17 23:57:52 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 3.00259e-05 Jy/beam 2026-07-17 23:57:52 INFO imstat:::: -- IQR [quartile]: 6.1616e-05 Jy/beam 2026-07-17 23:57:52 INFO imstat:::: -- First quartile [q1]: -4.79744e-05 Jy/beam 2026-07-17 23:57:52 INFO imstat:::: -- Third quartile [q3]: 1.36416e-05 Jy/beam 2026-07-17 23:57:52 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-17 23:57:52 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-17 23:57:52 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-17 23:57:52 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-17 23:57:52 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-17 23:57:52 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-17 23:57:52 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 2026-07-17 23:57:52 INFO imstat::::casa Task imstat complete. Start time: 2026-07-17 23:57:52.298325 End time: 2026-07-17 23:57:52.324040 2026-07-17 23:57:52 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-17 23:57:52 INFO imstat::::casa ########################################## 2026-07-17 23:57:52 INFO phaseshift::::casa ########################################## 2026-07-17 23:57:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:57:52 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.108888889deg' ) 2026-07-17 23:57:52 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-17 23:57:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:57:52 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-17 23:57:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:57:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:57:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:57:52 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-17 23:57:52 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-17 23:57:52 INFO MSTransformManager::open Select data 2026-07-17 23:57:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:57:56 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-17 23:57:56 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-07-17 23:57:56 INFO phaseshift::::casa Shift phase center 2026-07-17 23:57:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:57:57 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:57:52.336642 End time: 2026-07-17 23:57:57.228379 2026-07-17 23:57:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:57:57 INFO phaseshift::::casa ########################################## 2026-07-17 23:57:57 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-07-17 23:57:57 INFO tclean::::casa ########################################## 2026-07-17 23:57:57 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-17 23:57:57 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, 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 ) 2026-07-17 23:57:57 INFO tclean::::casa Verifying Input Parameters 2026-07-17 23:57:57 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-17 23:57:57 INFO SynthesisImagerVi2::selectData NRows selected : 7020 2026-07-17 23:57:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-17 23:57:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-17 23:57:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-17 23:57:57 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-17 23:57:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-17 23:57:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.85 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-17 23:57:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-17 23:57:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-17 23:57:57 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-17 23:57:59 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00843949 2026-07-17 23:57:59 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020685 2026-07-17 23:57:59 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.9193 arcsec, 77.6082 arcsec, 88.5528 deg 2026-07-17 23:57:59 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-17 23:58:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-17 23:58:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-17 23:58:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-17 23:58:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-17 23:58:01 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-17 23:58:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6069034934043884, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:58:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.606903, CycleNiter=20, Gain=0.3 2026-07-17 23:58:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-17 23:58:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-17 23:58:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-17 23:58:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-17 23:58:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07140088081359863, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:58:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0714009, CycleNiter=14, Gain=0.3 2026-07-17 23:58:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-07-17 23:58:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-17 23:58:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-17 23:58:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-07-17 23:58:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00840018317103386, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:58:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00840018, CycleNiter=8, Gain=0.3 2026-07-17 23:58:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-07-17 23:58:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-17 23:58:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-17 23:58:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814189, over full image : 0.00814189 2026-07-17 23:58:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009882674785330892, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:58:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000988267, CycleNiter=2, Gain=0.3 2026-07-17 23:58:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814189->0.00279267, Reached cycleniter. 2026-07-17 23:58:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-17 23:58:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-17 23:58:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0027928, over full image : 0.0027928 2026-07-17 23:58:08 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-17 23:58:08 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-17 23:58:08 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-17 23:58:09 INFO SIImageStore::restore Beam for chan : 0 : 88.9193 arcsec, 77.6082 arcsec, 88.5528 deg 2026-07-17 23:58:09 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-17 23:58:11 INFO tclean::::casa Task tclean complete. Start time: 2026-07-17 23:57:57.340911 End time: 2026-07-17 23:58:10.580109 2026-07-17 23:58:11 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-17 23:58:11 INFO tclean::::casa ########################################## 2026-07-17 23:58:11 INFO imstat::::casa ########################################## 2026-07-17 23:58:11 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-17 23:58:11 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 ) 2026-07-17 23:58:11 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-17 23:58:11 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-17 23:58:11 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-17 23:58:11 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-17 23:58:11 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-17 23:58:11 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) 2026-07-17 23:58:11 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-17 23:58:11 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-17 23:58:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-17 23:58:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-17 23:58:11 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 999981604.64Hz 2026-07-17 23:58:11 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 999981604.64Hz 2026-07-17 23:58:11 INFO imstat:::: Values --- 2026-07-17 23:58:11 INFO imstat:::: -- flux density [flux]: 4.99444 Jy 2026-07-17 23:58:11 INFO imstat:::: -- number of points [npts]: 65536 2026-07-17 23:58:11 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-17 23:58:11 INFO imstat:::: -- minimum value [min]: -9.70533e-05 Jy/beam 2026-07-17 23:58:11 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-07-17 23:58:11 INFO imstat:::: -- position of min value (pixel) [minpos]: [158, 70, 0, 0] 2026-07-17 23:58:11 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981604.64Hz 2026-07-17 23:58:11 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:29.120, +39.58.47.882, I, 999981604.64Hz 2026-07-17 23:58:11 INFO imstat:::: -- Sum of pixel values [sum]: 610.203 Jy/beam 2026-07-17 23:58:11 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1527.26 Jy/beam.Jy/beam 2026-07-17 23:58:11 INFO imstat:::: Statistics --- 2026-07-17 23:58:11 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00931096 Jy/beam 2026-07-17 23:58:11 INFO imstat:::: -- Variance of the pixel values : 0.0232178 Jy/beam 2026-07-17 23:58:11 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152374 Jy/beam 2026-07-17 23:58:11 INFO imstat:::: -- Root mean square [rms]: 0.152657 Jy/beam 2026-07-17 23:58:11 INFO imstat:::: -- Median of the pixel values [median]: -1.85752e-05 Jy/beam 2026-07-17 23:58:11 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.83975e-05 Jy/beam 2026-07-17 23:58:11 INFO imstat:::: -- IQR [quartile]: 3.74524e-05 Jy/beam 2026-07-17 23:58:11 INFO imstat:::: -- First quartile [q1]: -3.53147e-05 Jy/beam 2026-07-17 23:58:11 INFO imstat:::: -- Third quartile [q3]: 2.13765e-06 Jy/beam 2026-07-17 23:58:11 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-17 23:58:11 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-17 23:58:11 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-17 23:58:11 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-17 23:58:11 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-17 23:58:11 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-17 23:58:11 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 2026-07-17 23:58:11 INFO imstat::::casa Task imstat complete. Start time: 2026-07-17 23:58:10.586410 End time: 2026-07-17 23:58:10.616890 2026-07-17 23:58:11 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-17 23:58:11 INFO imstat::::casa ########################################## 2026-07-17 23:58:11 INFO phaseshift::::casa ########################################## 2026-07-17 23:58:11 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:58:11 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' ) 2026-07-17 23:58:11 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-17 23:58:11 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:58:11 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-17 23:58:11 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:58:11 INFO MSTransformManager::parseDataSelParams field selection is 1 2026-07-17 23:58:11 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:58:11 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:58:11 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-17 23:58:11 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-17 23:58:11 INFO MSTransformManager::open Select data 2026-07-17 23:58:11 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:58:11 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-07-17 23:58:13 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-17 23:58:13 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 50.108888889deg' successfully parsed 2026-07-17 23:58:13 INFO phaseshift::::casa Shift phase center 2026-07-17 23:58:14 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:58:14 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:58:10.630484 End time: 2026-07-17 23:58:14.107234 2026-07-17 23:58:14 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:58:14 INFO phaseshift::::casa ########################################## 2026-07-17 23:58:14 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-07-17 23:58:14 INFO tclean::::casa ########################################## 2026-07-17 23:58:14 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-17 23:58:14 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, 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 ) 2026-07-17 23:58:14 INFO tclean::::casa Verifying Input Parameters 2026-07-17 23:58:14 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-17 23:58:14 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-07-17 23:58:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-17 23:58:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-17 23:58:14 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-17 23:58:14 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99968e+08] at [0] with increment [9.99982e+07] 2026-07-17 23:58:14 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-17 23:58:14 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.85 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-17 23:58:14 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-17 23:58:14 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-17 23:58:14 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-17 23:58:16 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-07-17 23:58:16 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022377 2026-07-17 23:58:16 INFO task_tclean::SIImageStore::printBeamSet Beam : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-07-17 23:58:16 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-17 23:58:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-17 23:58:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 0.290316 2026-07-17 23:58:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-17 23:58:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-17 23:58:18 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.290316, over full image : 0.290316 2026-07-17 23:58:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.03697436675429344, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:58:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0369744, CycleNiter=20, Gain=0.3 2026-07-17 23:58:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->20 [20], model=0->1.38616, peakres=0.290316->0.18329, Reached cycleniter. 2026-07-17 23:58:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-17 23:58:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-17 23:58:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.180075, over full image : 0.180075 2026-07-17 23:58:19 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-17 23:58:19 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-17 23:58:19 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-17 23:58:20 INFO SIImageStore::restore Beam for chan : 0 : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-07-17 23:58:21 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-17 23:58:22 INFO tclean::::casa Task tclean complete. Start time: 2026-07-17 23:58:14.278964 End time: 2026-07-17 23:58:21.740419 2026-07-17 23:58:22 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-17 23:58:22 INFO tclean::::casa ########################################## 2026-07-17 23:58:22 INFO imstat::::casa ########################################## 2026-07-17 23:58:22 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-17 23:58:22 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 ) 2026-07-17 23:58:22 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-17 23:58:22 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-17 23:58:22 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-17 23:58:22 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-17 23:58:22 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-17 23:58:22 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) 2026-07-17 23:58:22 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-17 23:58:22 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-17 23:58:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-17 23:58:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-17 23:58:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz 2026-07-17 23:58:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz 2026-07-17 23:58:22 INFO imstat:::: Values --- 2026-07-17 23:58:22 INFO imstat:::: -- flux density [flux]: -0.242513 Jy 2026-07-17 23:58:22 INFO imstat:::: -- number of points [npts]: 65536 2026-07-17 23:58:22 INFO imstat:::: -- maximum value [max]: 0.285872 Jy/beam 2026-07-17 23:58:22 INFO imstat:::: -- minimum value [min]: -0.1468 Jy/beam 2026-07-17 23:58:22 INFO imstat:::: -- position of max value (pixel) [maxpos]: [54, 120, 0, 0] 2026-07-17 23:58:22 INFO imstat:::: -- position of min value (pixel) [minpos]: [148, 28, 0, 0] 2026-07-17 23:58:22 INFO imstat:::: -- position of max value (world) [maxposf]: 19:54:51.516, +50.05.26.984, I, 9.99968e+08Hz 2026-07-17 23:58:22 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:33.445, +49.53.11.924, I, 9.99968e+08Hz 2026-07-17 23:58:22 INFO imstat:::: -- Sum of pixel values [sum]: -29.9309 Jy/beam 2026-07-17 23:58:22 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 233.452 Jy/beam.Jy/beam 2026-07-17 23:58:22 INFO imstat:::: Statistics --- 2026-07-17 23:58:22 INFO imstat:::: -- Mean of the pixel values [mean]: -0.00045671 Jy/beam 2026-07-17 23:58:22 INFO imstat:::: -- Variance of the pixel values : 0.00356204 Jy/beam 2026-07-17 23:58:22 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0596828 Jy/beam 2026-07-17 23:58:22 INFO imstat:::: -- Root mean square [rms]: 0.0596841 Jy/beam 2026-07-17 23:58:22 INFO imstat:::: -- Median of the pixel values [median]: -0.00646386 Jy/beam 2026-07-17 23:58:22 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.0391011 Jy/beam 2026-07-17 23:58:22 INFO imstat:::: -- IQR [quartile]: 0.0789052 Jy/beam 2026-07-17 23:58:22 INFO imstat:::: -- First quartile [q1]: -0.0432754 Jy/beam 2026-07-17 23:58:22 INFO imstat:::: -- Third quartile [q3]: 0.0356299 Jy/beam 2026-07-17 23:58:22 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-17 23:58:22 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-17 23:58:22 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-17 23:58:22 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-17 23:58:22 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-17 23:58:22 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-17 23:58:22 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 2026-07-17 23:58:22 INFO imstat::::casa Task imstat complete. Start time: 2026-07-17 23:58:21.746942 End time: 2026-07-17 23:58:21.774430 2026-07-17 23:58:22 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-17 23:58:22 INFO imstat::::casa ########################################## 2026-07-17 23:58:22 INFO phaseshift::::casa ########################################## 2026-07-17 23:58:22 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:58:22 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' ) 2026-07-17 23:58:22 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-17 23:58:22 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:58:22 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-17 23:58:22 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:58:22 INFO MSTransformManager::parseDataSelParams field selection is pretend 2026-07-17 23:58:22 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:58:22 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:58:22 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-17 23:58:22 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-17 23:58:22 INFO MSTransformManager::open Select data 2026-07-17 23:58:22 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:58:22 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-07-17 23:58:25 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-17 23:58:25 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 50.108888889deg' successfully parsed 2026-07-17 23:58:25 INFO phaseshift::::casa Shift phase center 2026-07-17 23:58:25 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:58:26 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:58:21.786917 End time: 2026-07-17 23:58:25.554383 2026-07-17 23:58:26 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:58:26 INFO phaseshift::::casa ########################################## 2026-07-17 23:58:26 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data.ms... 2026-07-17 23:58:26 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-07-17 23:58:26 INFO tclean::::casa ########################################## 2026-07-17 23:58:26 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-17 23:58:26 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, 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 ) 2026-07-17 23:58:26 INFO tclean::::casa Verifying Input Parameters 2026-07-17 23:58:26 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-17 23:58:26 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-07-17 23:58:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-17 23:58:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-17 23:58:26 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-17 23:58:26 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99968e+08] at [0] with increment [9.99982e+07] 2026-07-17 23:58:26 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-17 23:58:26 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.85 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-17 23:58:26 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-17 23:58:26 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-17 23:58:26 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-17 23:58:27 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-07-17 23:58:27 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021592 2026-07-17 23:58:27 INFO task_tclean::SIImageStore::printBeamSet Beam : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-07-17 23:58:27 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-17 23:58:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-17 23:58:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 0.290316 2026-07-17 23:58:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-17 23:58:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-17 23:58:29 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.290316, over full image : 0.290316 2026-07-17 23:58:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.03697436675429344, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:58:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0369744, CycleNiter=20, Gain=0.3 2026-07-17 23:58:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->20 [20], model=0->1.38616, peakres=0.290316->0.18329, Reached cycleniter. 2026-07-17 23:58:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-17 23:58:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-17 23:58:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.180075, over full image : 0.180075 2026-07-17 23:58:31 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-17 23:58:31 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-17 23:58:31 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-17 23:58:31 INFO SIImageStore::restore Beam for chan : 0 : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-07-17 23:58:32 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-17 23:58:33 INFO tclean::::casa Task tclean complete. Start time: 2026-07-17 23:58:25.607345 End time: 2026-07-17 23:58:33.003202 2026-07-17 23:58:33 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-17 23:58:33 INFO tclean::::casa ########################################## 2026-07-17 23:58:33 INFO imstat::::casa ########################################## 2026-07-17 23:58:33 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-17 23:58:33 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 ) 2026-07-17 23:58:33 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-17 23:58:33 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-17 23:58:33 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-17 23:58:33 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-17 23:58:33 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-17 23:58:33 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) 2026-07-17 23:58:33 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-17 23:58:33 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-17 23:58:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-17 23:58:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-17 23:58:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz 2026-07-17 23:58:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz 2026-07-17 23:58:33 INFO imstat:::: Values --- 2026-07-17 23:58:33 INFO imstat:::: -- flux density [flux]: -0.242513 Jy 2026-07-17 23:58:33 INFO imstat:::: -- number of points [npts]: 65536 2026-07-17 23:58:33 INFO imstat:::: -- maximum value [max]: 0.285872 Jy/beam 2026-07-17 23:58:33 INFO imstat:::: -- minimum value [min]: -0.1468 Jy/beam 2026-07-17 23:58:33 INFO imstat:::: -- position of max value (pixel) [maxpos]: [54, 120, 0, 0] 2026-07-17 23:58:33 INFO imstat:::: -- position of min value (pixel) [minpos]: [148, 28, 0, 0] 2026-07-17 23:58:33 INFO imstat:::: -- position of max value (world) [maxposf]: 19:54:51.516, +50.05.26.984, I, 9.99968e+08Hz 2026-07-17 23:58:33 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:33.445, +49.53.11.924, I, 9.99968e+08Hz 2026-07-17 23:58:33 INFO imstat:::: -- Sum of pixel values [sum]: -29.9309 Jy/beam 2026-07-17 23:58:33 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 233.452 Jy/beam.Jy/beam 2026-07-17 23:58:33 INFO imstat:::: Statistics --- 2026-07-17 23:58:33 INFO imstat:::: -- Mean of the pixel values [mean]: -0.00045671 Jy/beam 2026-07-17 23:58:33 INFO imstat:::: -- Variance of the pixel values : 0.00356204 Jy/beam 2026-07-17 23:58:33 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0596828 Jy/beam 2026-07-17 23:58:33 INFO imstat:::: -- Root mean square [rms]: 0.0596841 Jy/beam 2026-07-17 23:58:33 INFO imstat:::: -- Median of the pixel values [median]: -0.00646386 Jy/beam 2026-07-17 23:58:33 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.0391011 Jy/beam 2026-07-17 23:58:33 INFO imstat:::: -- IQR [quartile]: 0.0789052 Jy/beam 2026-07-17 23:58:33 INFO imstat:::: -- First quartile [q1]: -0.0432754 Jy/beam 2026-07-17 23:58:33 INFO imstat:::: -- Third quartile [q3]: 0.0356299 Jy/beam 2026-07-17 23:58:33 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-17 23:58:33 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-17 23:58:33 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-17 23:58:33 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-17 23:58:33 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-17 23:58:33 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-17 23:58:33 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 2026-07-17 23:58:33 INFO imstat::::casa Task imstat complete. Start time: 2026-07-17 23:58:33.009405 End time: 2026-07-17 23:58:33.044329 2026-07-17 23:58:33 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-17 23:58:33 INFO imstat::::casa ########################################## .2026-07-17 23:58:33 INFO tclean::::casa ########################################## 2026-07-17 23:58:33 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-17 23:58:33 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, 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 ) 2026-07-17 23:58:33 INFO tclean::::casa Verifying Input Parameters 2026-07-17 23:58:33 INFO SynthesisImagerVi2::selectData MS : sim_data.ms | [Opened in readonly mode] 2026-07-17 23:58:33 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-17 23:58:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_orig] : 2026-07-17 23:58:33 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_orig] : 2026-07-17 23:58:33 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-17 23:58:33 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [9.99981e+08] at [0] with increment [1e+08] 2026-07-17 23:58:33 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_orig] with ftmachine : wprojectft 2026-07-17 23:58:33 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 10.85 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-17 23:58:33 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-17 23:58:33 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_orig] : hogbom 2026-07-17 23:58:33 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-17 23:58:34 INFO task_tclean::WPConvFunc::findConvFunction W projection using 128 planes 2026-07-17 23:58:34 INFO task_tclean::WPConvFunc::findConvFunction Using maximum possible W = 6445.78 (wavelengths) 2026-07-17 23:58:34 INFO task_tclean::WPConvFunc::findConvFunction Typical wavelength = 0.299799 (m) 2026-07-17 23:58:34 INFO task_tclean::WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.399639 wavelengths per pixel 2026-07-17 23:58:57 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 2026-07-17 23:58:57 INFO task_tclean::WPConvFunc::findConvFunction Memory used in gridding function = 14 MB from maximum 15884 MB 2026-07-17 23:59:00 INFO task_tclean::SIImageStore::calcSensitivity [im_orig] Theoretical sensitivity (Jy/bm):0.00889437 2026-07-17 23:59:00 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.085584 2026-07-17 23:59:00 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.6975 arcsec, 77.5413 arcsec, -89.6046 deg 2026-07-17 23:59:00 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-17 23:59:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-17 23:59:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 4.94899 2026-07-17 23:59:04 INFO SynthesisDeconvolver::setupMask [im_orig] Initializing new mask to 1.0 for the full image 2026-07-17 23:59:04 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 % ] 2026-07-17 23:59:04 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 4.94899, over full image : 4.94899 2026-07-17 23:59:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.5971387624740601, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:59:04 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.597139, CycleNiter=20, Gain=0.3 2026-07-17 23:59:06 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->7 [7], model=0->4.6028, peakres=4.94899->0.435227, Reached cyclethreshold. 2026-07-17 23:59:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 7 iterations. 2026-07-17 23:59:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-17 23:59:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.45574, over full image : 0.45574 2026-07-17 23:59:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 13, 'cyclethreshold': 0.05498892068862915, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:59:09 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.0549889, CycleNiter=13, Gain=0.3 2026-07-17 23:59:10 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->7 [7], model=4.6028->5.02619, peakres=0.45574->0.0435268, Reached cyclethreshold. 2026-07-17 23:59:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 14 iterations. 2026-07-17 23:59:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-17 23:59:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0416506, over full image : 0.0416506 2026-07-17 23:59:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 6, 'cyclethreshold': 0.005025508347898722, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:59:14 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.00502551, CycleNiter=6, Gain=0.3 2026-07-17 23:59:15 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->6 [6], model=5.02619->5.04001, peakres=0.0416506->0.0226678, Reached cycleniter. 2026-07-17 23:59:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-17 23:59:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-17 23:59:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.022671, over full image : 0.022671 2026-07-17 23:59:18 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-17 23:59:18 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-17 23:59:18 INFO SDAlgorithmBase::restore [im_orig] : Restoring model image. 2026-07-17 23:59:19 INFO SIImageStore::restore Beam for chan : 0 : 88.6975 arcsec, 77.5413 arcsec, -89.6046 deg 2026-07-17 23:59:20 INFO tclean::::casa Searching for images with prefix 'im_orig'... Found these, writing history into them: ['im_orig.sumwt', 'im_orig.psf', 'im_orig.model', 'im_orig.residual', 'im_orig.pb', 'im_orig.image', 'im_orig.mask'] 2026-07-17 23:59:21 INFO tclean::::casa Task tclean complete. Start time: 2026-07-17 23:58:33.377183 End time: 2026-07-17 23:59:21.303232 2026-07-17 23:59:21 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-17 23:59:21 INFO tclean::::casa ########################################## 2026-07-17 23:59:21 INFO imstat::::casa ########################################## 2026-07-17 23:59:21 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-17 23:59:21 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 ) 2026-07-17 23:59:21 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-17 23:59:21 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-17 23:59:21 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-17 23:59:21 INFO imstat::image::statistics Determining stats for image im_orig.image 2026-07-17 23:59:21 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-17 23:59:21 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) 2026-07-17 23:59:21 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-17 23:59:21 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-17 23:59:21 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-17 23:59:21 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [2047, 2047, 0, 0] 2026-07-17 23:59:21 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 20:11:05.220, +38.21.11.967, I, 999980841.3Hz 2026-07-17 23:59:21 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:47:03.322, +42.54.02.996, I, 999980841.3Hz 2026-07-17 23:59:22 INFO imstat:::: Values --- 2026-07-17 23:59:22 INFO imstat:::: -- flux density [flux]: 5.2713 Jy 2026-07-17 23:59:22 INFO imstat:::: -- number of points [npts]: 4.1943e+06 2026-07-17 23:59:22 INFO imstat:::: -- maximum value [max]: 4.97713 Jy/beam 2026-07-17 23:59:22 INFO imstat:::: -- minimum value [min]: -0.022671 Jy/beam 2026-07-17 23:59:22 INFO imstat:::: -- position of max value (pixel) [maxpos]: [1509, 773, 0, 0] 2026-07-17 23:59:22 INFO imstat:::: -- position of min value (pixel) [minpos]: [1708, 965, 0, 0] 2026-07-17 23:59:22 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.302, +40.06.02.372, I, 999980841.3Hz 2026-07-17 23:59:22 INFO imstat:::: -- position of min value (world) [minposf]: 19:51:28.525, +40.31.07.260, I, 999980841.3Hz 2026-07-17 23:59:22 INFO imstat:::: -- Sum of pixel values [sum]: 641.87 Jy/beam 2026-07-17 23:59:22 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1619.58 Jy/beam.Jy/beam 2026-07-17 23:59:22 INFO imstat:::: Statistics --- 2026-07-17 23:59:22 INFO imstat:::: -- Mean of the pixel values [mean]: 0.000153034 Jy/beam 2026-07-17 23:59:22 INFO imstat:::: -- Variance of the pixel values : 0.000386116 Jy/beam 2026-07-17 23:59:22 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0196498 Jy/beam 2026-07-17 23:59:22 INFO imstat:::: -- Root mean square [rms]: 0.0196504 Jy/beam 2026-07-17 23:59:22 INFO imstat:::: -- Median of the pixel values [median]: 4.62212e-06 Jy/beam 2026-07-17 23:59:22 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.003161 Jy/beam 2026-07-17 23:59:22 INFO imstat:::: -- IQR [quartile]: 0.00632194 Jy/beam 2026-07-17 23:59:22 INFO imstat:::: -- First quartile [q1]: -0.00315522 Jy/beam 2026-07-17 23:59:22 INFO imstat:::: -- Third quartile [q3]: 0.00316673 Jy/beam 2026-07-17 23:59:22 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-17 23:59:22 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-17 23:59:22 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-17 23:59:22 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-17 23:59:22 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-17 23:59:22 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-17 23:59:22 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 2026-07-17 23:59:22 INFO imstat::::casa Task imstat complete. Start time: 2026-07-17 23:59:21.309222 End time: 2026-07-17 23:59:21.640140 2026-07-17 23:59:22 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-17 23:59:22 INFO imstat::::casa ########################################## 2026-07-17 23:59:22 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-17 23:59:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-17 23:59:22 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) 2026-07-17 23:59:22 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-17 23:59:22 INFO ImageFitter::fit ****** Fit performed at Fri Jul 17 23:59:22 2026****** 2026-07-17 23:59:22 INFO ImageFitter::fit+ 2026-07-17 23:59:22 INFO ImageFitter::fit+ Input parameters --- 2026-07-17 23:59:22 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_orig.image 2026-07-17 23:59:22 INFO ImageFitter::fit+ --- region: 2026-07-17 23:59:22 INFO ImageFitter::fit+ --- channel: 0 2026-07-17 23:59:22 INFO ImageFitter::fit+ --- stokes: I 2026-07-17 23:59:22 INFO ImageFitter::fit+ --- mask: 2026-07-17 23:59:22 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-17 23:59:22 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-17 23:59:22 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-17 23:59:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-17 23:59:22 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) 2026-07-17 23:59:22 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29832 Jy 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00459192 Jy 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85855 Jy 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00458731 Jy 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ Fit on im_orig.image component 0 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ Position --- 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.9885 +/- 0.0032 s (0.0367 arcsec along great circle) 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.0594 +/- 0.0281 arcsec 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ --- ra: 1509.4535 +/- 0.0046 pixels 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ --- dec: 772.7181 +/- 0.0035 pixels 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.4778 +/- 0.0014 arcmin 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.2915 +/- 0.0011 arcmin 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.42 +/- 0.26 deg 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.70 arcsec 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.54 arcsec 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ --- position angle: -89.60 deg 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ Component is a point source 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ An upper limit on its size cannot be determined 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ --- Integrated: 5.0049 +/- 0.0079 Jy 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ --- Peak: 5.0102 +/- 0.0046 Jy/beam 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-17 23:59:22 INFO ImageFitter::_fitLoop+ --- frequency: 999.9808 MHz (29.97982 cm) 2026-07-17 23:59:22 INFO phaseshift::::casa ########################################## 2026-07-17 23:59:22 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:59:22 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' ) 2026-07-17 23:59:22 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-17 23:59:22 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:59:22 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-17 23:59:22 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:59:22 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:59:22 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:59:22 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-17 23:59:22 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-17 23:59:22 INFO MSTransformManager::open Select data 2026-07-17 23:59:22 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:59:25 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-17 23:59:25 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-07-17 23:59:25 INFO phaseshift::::casa Shift phase center 2026-07-17 23:59:26 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:59:26 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:59:21.745835 End time: 2026-07-17 23:59:25.682364 2026-07-17 23:59:26 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:59:26 INFO phaseshift::::casa ########################################## 2026-07-17 23:59:26 INFO tclean::::casa ########################################## 2026-07-17 23:59:26 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-17 23:59:26 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, 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 ) 2026-07-17 23:59:26 INFO tclean::::casa Verifying Input Parameters 2026-07-17 23:59:26 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-17 23:59:26 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-17 23:59:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-17 23:59:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-17 23:59:26 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-17 23:59:26 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-17 23:59:26 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-17 23:59:26 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-17 23:59:26 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-17 23:59:26 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-17 23:59:26 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-17 23:59:27 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-17 23:59:27 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021357 2026-07-17 23:59:27 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-17 23:59:27 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-17 23:59:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-17 23:59:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-17 23:59:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-17 23:59:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-17 23:59:30 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-17 23:59:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:59:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-17 23:59:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-17 23:59:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-17 23:59:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-17 23:59:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-17 23:59:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:59:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-17 23:59:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-17 23:59:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-17 23:59:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-17 23:59:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-17 23:59:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:59:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-17 23:59:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-17 23:59:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-17 23:59:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-17 23:59:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-17 23:59:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:59:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-17 23:59:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-17 23:59:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-17 23:59:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-17 23:59:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-17 23:59:40 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-17 23:59:40 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-17 23:59:40 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-17 23:59:41 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-17 23:59:41 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-17 23:59:42 INFO tclean::::casa Task tclean complete. Start time: 2026-07-17 23:59:25.808929 End time: 2026-07-17 23:59:42.446350 2026-07-17 23:59:42 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-17 23:59:42 INFO tclean::::casa ########################################## 2026-07-17 23:59:42 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-17 23:59:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-17 23:59:42 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) 2026-07-17 23:59:42 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-17 23:59:42 INFO ImageFitter::fit ****** Fit performed at Fri Jul 17 23:59:42 2026****** 2026-07-17 23:59:42 INFO ImageFitter::fit+ 2026-07-17 23:59:42 INFO ImageFitter::fit+ Input parameters --- 2026-07-17 23:59:42 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-17 23:59:42 INFO ImageFitter::fit+ --- region: 2026-07-17 23:59:42 INFO ImageFitter::fit+ --- channel: 0 2026-07-17 23:59:42 INFO ImageFitter::fit+ --- stokes: I 2026-07-17 23:59:42 INFO ImageFitter::fit+ --- mask: 2026-07-17 23:59:42 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-17 23:59:42 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-17 23:59:42 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-17 23:59:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-17 23:59:42 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) 2026-07-17 23:59:42 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ Position --- 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-17 23:59:42 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-17 23:59:42 INFO imstat::::casa ########################################## 2026-07-17 23:59:42 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-17 23:59:42 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 ) 2026-07-17 23:59:43 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-17 23:59:43 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-17 23:59:43 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-17 23:59:43 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-17 23:59:43 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-17 23:59:43 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) 2026-07-17 23:59:43 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-17 23:59:43 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-17 23:59:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-17 23:59:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-17 23:59:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-17 23:59:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-17 23:59:43 INFO imstat:::: Values --- 2026-07-17 23:59:43 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-17 23:59:43 INFO imstat:::: -- number of points [npts]: 65536 2026-07-17 23:59:43 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-17 23:59:43 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-07-17 23:59:43 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-17 23:59:43 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-17 23:59:43 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-17 23:59:43 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-17 23:59:43 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-17 23:59:43 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-17 23:59:43 INFO imstat:::: Statistics --- 2026-07-17 23:59:43 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-17 23:59:43 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-17 23:59:43 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-17 23:59:43 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-17 23:59:43 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-07-17 23:59:43 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-07-17 23:59:43 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-07-17 23:59:43 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-07-17 23:59:43 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-07-17 23:59:43 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-17 23:59:43 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-17 23:59:43 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-17 23:59:43 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-17 23:59:43 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-17 23:59:43 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-17 23:59:43 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 2026-07-17 23:59:43 INFO imstat::::casa Task imstat complete. Start time: 2026-07-17 23:59:42.497399 End time: 2026-07-17 23:59:42.516749 2026-07-17 23:59:43 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-17 23:59:43 INFO imstat::::casa ########################################## 2026-07-17 23:59:43 INFO phaseshift::::casa ########################################## 2026-07-17 23:59:43 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-17 23:59:43 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 02:40:24.0000' ) 2026-07-17 23:59:43 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-17 23:59:43 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-17 23:59:43 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-17 23:59:43 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-17 23:59:43 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-17 23:59:43 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-17 23:59:43 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-17 23:59:43 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-17 23:59:43 INFO MSTransformManager::open Select data 2026-07-17 23:59:43 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-17 23:59:45 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0000" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-07-17 23:59:45 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 02:40:24.0000' successfully parsed 2026-07-17 23:59:45 INFO phaseshift::::casa Shift phase center 2026-07-17 23:59:47 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-17 23:59:47 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-17 23:59:42.530193 End time: 2026-07-17 23:59:46.659480 2026-07-17 23:59:47 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-17 23:59:47 INFO phaseshift::::casa ########################################## 2026-07-17 23:59:47 INFO tclean::::casa ########################################## 2026-07-17 23:59:47 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-17 23:59:47 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, 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 ) 2026-07-17 23:59:47 INFO tclean::::casa Verifying Input Parameters 2026-07-17 23:59:47 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-17 23:59:47 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-17 23:59:47 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-17 23:59:47 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-17 23:59:47 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-17 23:59:47 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-17 23:59:47 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-17 23:59:47 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-17 23:59:47 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-17 23:59:47 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-17 23:59:47 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-17 23:59:48 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-17 23:59:48 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022091 2026-07-17 23:59:48 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-17 23:59:48 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-17 23:59:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-17 23:59:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-17 23:59:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-17 23:59:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-17 23:59:51 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-17 23:59:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:59:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-17 23:59:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-17 23:59:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-17 23:59:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-17 23:59:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-17 23:59:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:59:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-17 23:59:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-17 23:59:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-17 23:59:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-17 23:59:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-17 23:59:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:59:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-17 23:59:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-17 23:59:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-17 23:59:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-17 23:59:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-17 23:59:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-17 23:59:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-17 23:59:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-17 23:59:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-17 23:59:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-17 23:59:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-17 23:59:57 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-17 23:59:57 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-17 23:59:57 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-17 23:59:58 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-17 23:59:59 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:00:00 INFO tclean::::casa Task tclean complete. Start time: 2026-07-17 23:59:46.690352 End time: 2026-07-18 00:00:00.171465 2026-07-18 00:00:00 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:00:00 INFO tclean::::casa ########################################## 2026-07-18 00:00:00 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:00:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:00:00 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) 2026-07-18 00:00:00 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:00:00 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:00:00 2026****** 2026-07-18 00:00:00 INFO ImageFitter::fit+ 2026-07-18 00:00:00 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:00:00 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:00:00 INFO ImageFitter::fit+ --- region: 2026-07-18 00:00:00 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:00:00 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:00:00 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:00:00 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:00:00 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:00:00 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:00:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:00:00 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) 2026-07-18 00:00:00 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:00:00 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:00:00 INFO imstat::::casa ########################################## 2026-07-18 00:00:00 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:00:00 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 ) 2026-07-18 00:00:00 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:00:00 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:00:00 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:00:00 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:00:00 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:00:00 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) 2026-07-18 00:00:00 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:00:00 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:00:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:00:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:00:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:00:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:00:00 INFO imstat:::: Values --- 2026-07-18 00:00:00 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:00:00 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:00:00 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:00:00 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-07-18 00:00:00 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:00:00 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:00:00 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:00:00 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:00:00 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:00:00 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:00:00 INFO imstat:::: Statistics --- 2026-07-18 00:00:00 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:00:00 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:00:00 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:00:00 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:00:00 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-07-18 00:00:00 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-07-18 00:00:00 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-07-18 00:00:00 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-07-18 00:00:00 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-07-18 00:00:00 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:00:00 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:00:00 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:00:00 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:00:00 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:00:00 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:00:00 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 2026-07-18 00:00:00 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:00:00.233592 End time: 2026-07-18 00:00:00.252817 2026-07-18 00:00:00 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:00:00 INFO imstat::::casa ########################################## 2026-07-18 00:00:00 INFO phaseshift::::casa ########################################## 2026-07-18 00:00:00 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:00:00 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.100000000deg' ) 2026-07-18 00:00:00 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:00:00 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:00:00 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:00:00 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:00:00 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:00:00 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:00:00 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:00:00 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:00:00 INFO MSTransformManager::open Select data 2026-07-18 00:00:00 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:00:06 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:00:06 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.100000000deg' successfully parsed 2026-07-18 00:00:06 INFO phaseshift::::casa Shift phase center 2026-07-18 00:00:08 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:00:08 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:00:00.266709 End time: 2026-07-18 00:00:08.114380 2026-07-18 00:00:08 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:00:08 INFO phaseshift::::casa ########################################## 2026-07-18 00:00:08 INFO tclean::::casa ########################################## 2026-07-18 00:00:08 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:00:08 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, 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 ) 2026-07-18 00:00:08 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:00:08 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:00:08 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:00:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:00:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:00:08 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:00:08 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:00:08 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:00:08 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.81 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:00:08 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:00:08 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:00:08 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:00:10 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:00:10 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021689 2026-07-18 00:00:10 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:00:10 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:00:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:00:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:00:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:00:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:00:13 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:00:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:00:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:00:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:00:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:00:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:00:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:00:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:00:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:00:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:00:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:00:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:00:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:00:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:00:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:00:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:00:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:00:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:00:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:00:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:00:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:00:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:00:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:00:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:00:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:00:23 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:00:23 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:00:23 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:00:24 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:00:25 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:00:29 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:00:08.144400 End time: 2026-07-18 00:00:28.621183 2026-07-18 00:00:29 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:00:29 INFO tclean::::casa ########################################## 2026-07-18 00:00:29 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:00:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:00:29 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) 2026-07-18 00:00:29 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:00:29 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:00:29 2026****** 2026-07-18 00:00:29 INFO ImageFitter::fit+ 2026-07-18 00:00:29 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:00:29 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:00:29 INFO ImageFitter::fit+ --- region: 2026-07-18 00:00:29 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:00:29 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:00:29 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:00:29 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:00:29 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:00:29 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:00:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:00:29 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) 2026-07-18 00:00:29 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:00:29 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:00:29 INFO imstat::::casa ########################################## 2026-07-18 00:00:29 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:00:29 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 ) 2026-07-18 00:00:29 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:00:29 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:00:29 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:00:29 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:00:29 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:00:29 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) 2026-07-18 00:00:29 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:00:29 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:00:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:00:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:00:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:00:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:00:29 INFO imstat:::: Values --- 2026-07-18 00:00:29 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:00:29 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:00:29 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:00:29 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-07-18 00:00:29 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:00:29 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:00:29 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:00:29 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:00:29 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:00:29 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:00:29 INFO imstat:::: Statistics --- 2026-07-18 00:00:29 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:00:29 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:00:29 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:00:29 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:00:29 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-07-18 00:00:29 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-07-18 00:00:29 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-07-18 00:00:29 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-07-18 00:00:29 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-07-18 00:00:29 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:00:29 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:00:29 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:00:29 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:00:29 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:00:29 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:00:29 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 2026-07-18 00:00:29 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:00:28.676104 End time: 2026-07-18 00:00:28.696619 2026-07-18 00:00:29 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:00:29 INFO imstat::::casa ########################################## 2026-07-18 00:00:29 INFO phaseshift::::casa ########################################## 2026-07-18 00:00:29 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:00:29 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' ) 2026-07-18 00:00:29 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:00:29 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:00:29 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:00:29 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:00:29 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:00:29 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:00:29 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:00:29 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:00:29 INFO MSTransformManager::open Select data 2026-07-18 00:00:29 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:00:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:00:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 0.699877030rad' successfully parsed 2026-07-18 00:00:33 INFO phaseshift::::casa Shift phase center 2026-07-18 00:00:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:00:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:00:28.710442 End time: 2026-07-18 00:00:33.581848 2026-07-18 00:00:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:00:34 INFO phaseshift::::casa ########################################## 2026-07-18 00:00:34 INFO tclean::::casa ########################################## 2026-07-18 00:00:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:00:34 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, 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 ) 2026-07-18 00:00:34 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:00:34 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:00:34 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:00:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:00:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:00:34 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:00:34 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:00:34 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:00:34 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.81 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:00:34 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:00:34 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:00:34 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:00:35 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:00:35 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021559 2026-07-18 00:00:35 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:00:35 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:00:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:00:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:00:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:00:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:00:38 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:00:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:00:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:00:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:00:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:00:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:00:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:00:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:00:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:00:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:00:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:00:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:00:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:00:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:00:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:00:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:00:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:00:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:00:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:00:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:00:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:00:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:00:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:00:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:00:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:00:46 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:00:46 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:00:46 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:00:47 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:00:47 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:00:49 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:00:33.614964 End time: 2026-07-18 00:00:48.890517 2026-07-18 00:00:49 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:00:49 INFO tclean::::casa ########################################## 2026-07-18 00:00:49 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:00:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:00:49 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) 2026-07-18 00:00:49 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:00:49 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:00:49 2026****** 2026-07-18 00:00:49 INFO ImageFitter::fit+ 2026-07-18 00:00:49 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:00:49 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:00:49 INFO ImageFitter::fit+ --- region: 2026-07-18 00:00:49 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:00:49 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:00:49 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:00:49 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:00:49 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:00:49 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:00:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:00:49 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) 2026-07-18 00:00:49 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:00:49 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:00:49 INFO imstat::::casa ########################################## 2026-07-18 00:00:49 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:00:49 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 ) 2026-07-18 00:00:49 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:00:49 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:00:49 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:00:49 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:00:49 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:00:49 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) 2026-07-18 00:00:49 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:00:49 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:00:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:00:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:00:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:00:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:00:49 INFO imstat:::: Values --- 2026-07-18 00:00:49 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:00:49 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:00:49 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:00:49 INFO imstat:::: -- minimum value [min]: -7.77764e-05 Jy/beam 2026-07-18 00:00:49 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:00:49 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-07-18 00:00:49 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:00:49 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-07-18 00:00:49 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:00:49 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:00:49 INFO imstat:::: Statistics --- 2026-07-18 00:00:49 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:00:49 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:00:49 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:00:49 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:00:49 INFO imstat:::: -- Median of the pixel values [median]: -1.86664e-05 Jy/beam 2026-07-18 00:00:49 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-07-18 00:00:49 INFO imstat:::: -- IQR [quartile]: 3.56255e-05 Jy/beam 2026-07-18 00:00:49 INFO imstat:::: -- First quartile [q1]: -3.45078e-05 Jy/beam 2026-07-18 00:00:49 INFO imstat:::: -- Third quartile [q3]: 1.11764e-06 Jy/beam 2026-07-18 00:00:49 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:00:49 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:00:49 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:00:49 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:00:49 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:00:49 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:00:49 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 2026-07-18 00:00:49 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:00:48.945584 End time: 2026-07-18 00:00:48.977820 2026-07-18 00:00:49 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:00:49 INFO imstat::::casa ########################################## 2026-07-18 00:00:49 INFO phaseshift::::casa ########################################## 2026-07-18 00:00:49 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:00:49 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 40d06m00' ) 2026-07-18 00:00:49 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:00:49 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:00:49 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:00:49 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:00:49 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:00:49 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:00:49 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:00:49 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:00:49 INFO MSTransformManager::open Select data 2026-07-18 00:00:49 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:00:53 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:00:53 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 40d06m00' successfully parsed 2026-07-18 00:00:53 INFO phaseshift::::casa Shift phase center 2026-07-18 00:00:54 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:00:54 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:00:48.991212 End time: 2026-07-18 00:00:53.973551 2026-07-18 00:00:54 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:00:54 INFO phaseshift::::casa ########################################## 2026-07-18 00:00:54 INFO tclean::::casa ########################################## 2026-07-18 00:00:54 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:00:54 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, 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 ) 2026-07-18 00:00:54 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:00:54 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:00:54 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:00:54 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:00:54 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:00:54 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:00:54 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:00:54 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:00:54 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.81 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:00:54 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:00:54 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:00:54 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:00:56 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:00:56 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.0215 2026-07-18 00:00:56 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:00:56 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:00:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:00:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:00:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:00:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:00:58 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:00:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:00:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:00:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:00:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:00:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:01:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:01:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:01:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:01:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:01:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:01:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:01:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:01:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:01:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:01:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:01:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:01:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:01:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:01:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:01:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:01:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:01:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:01:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:01:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:01:07 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:01:07 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:01:07 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:01:08 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:01:08 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:01:09 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:00:54.002334 End time: 2026-07-18 00:01:09.354798 2026-07-18 00:01:09 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:01:09 INFO tclean::::casa ########################################## 2026-07-18 00:01:09 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:01:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:01:09 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) 2026-07-18 00:01:09 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:01:09 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:01:09 2026****** 2026-07-18 00:01:09 INFO ImageFitter::fit+ 2026-07-18 00:01:09 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:01:09 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:01:09 INFO ImageFitter::fit+ --- region: 2026-07-18 00:01:09 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:01:09 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:01:09 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:01:09 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:01:09 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:01:09 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:01:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:01:09 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) 2026-07-18 00:01:09 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:01:09 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:01:09 INFO imstat::::casa ########################################## 2026-07-18 00:01:09 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:01:09 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 ) 2026-07-18 00:01:09 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:01:09 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:01:09 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:01:09 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:01:09 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:01:09 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) 2026-07-18 00:01:09 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:01:09 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:01:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:01:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:01:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:01:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:01:09 INFO imstat:::: Values --- 2026-07-18 00:01:09 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:01:09 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:01:09 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:01:09 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-07-18 00:01:09 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:01:09 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:01:09 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:01:09 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:01:09 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:01:09 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:01:09 INFO imstat:::: Statistics --- 2026-07-18 00:01:09 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:01:09 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:01:09 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:01:09 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:01:09 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-07-18 00:01:09 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-07-18 00:01:09 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-07-18 00:01:09 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-07-18 00:01:09 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-07-18 00:01:09 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:01:09 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:01:09 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:01:09 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:01:09 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:01:09 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:01:09 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 2026-07-18 00:01:09 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:01:09.407791 End time: 2026-07-18 00:01:09.426574 2026-07-18 00:01:09 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:01:09 INFO imstat::::casa ########################################## 2026-07-18 00:01:09 INFO phaseshift::::casa ########################################## 2026-07-18 00:01:09 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:01:09 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' ) 2026-07-18 00:01:09 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:01:09 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:01:09 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:01:09 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:01:09 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:01:09 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:01:09 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:01:09 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:01:09 INFO MSTransformManager::open Select data 2026-07-18 00:01:09 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:01:13 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 ".". 2026-07-18 00:01:13 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 02:40:24.0000' successfully parsed 2026-07-18 00:01:13 INFO phaseshift::::casa Shift phase center 2026-07-18 00:01:14 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:01:14 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:01:09.440277 End time: 2026-07-18 00:01:13.754416 2026-07-18 00:01:14 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:01:14 INFO phaseshift::::casa ########################################## 2026-07-18 00:01:14 INFO tclean::::casa ########################################## 2026-07-18 00:01:14 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:01:14 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, 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 ) 2026-07-18 00:01:14 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:01:14 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:01:14 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:01:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:01:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:01:14 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:01:14 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:01:14 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:01:14 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:01:14 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:01:14 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:01:14 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:01:15 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:01:15 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02146 2026-07-18 00:01:15 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:01:15 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:01:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:01:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:01:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:01:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:01:18 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:01:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:01:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:01:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:01:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:01:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:01:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:01:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:01:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:01:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:01:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:01:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:01:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:01:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:01:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:01:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:01:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:01:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:01:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:01:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:01:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:01:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:01:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:01:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:01:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:01:24 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:01:24 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:01:24 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:01:25 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:01:25 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:01:27 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:01:13.784859 End time: 2026-07-18 00:01:26.740810 2026-07-18 00:01:27 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:01:27 INFO tclean::::casa ########################################## 2026-07-18 00:01:27 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:01:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:01:27 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) 2026-07-18 00:01:27 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:01:27 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:01:27 2026****** 2026-07-18 00:01:27 INFO ImageFitter::fit+ 2026-07-18 00:01:27 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:01:27 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:01:27 INFO ImageFitter::fit+ --- region: 2026-07-18 00:01:27 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:01:27 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:01:27 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:01:27 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:01:27 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:01:27 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:01:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:01:27 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) 2026-07-18 00:01:27 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:01:27 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:01:27 INFO imstat::::casa ########################################## 2026-07-18 00:01:27 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:01:27 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 ) 2026-07-18 00:01:27 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:01:27 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:01:27 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:01:27 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:01:27 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:01:27 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) 2026-07-18 00:01:27 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:01:27 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:01:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:01:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:01:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:01:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:01:27 INFO imstat:::: Values --- 2026-07-18 00:01:27 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:01:27 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:01:27 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:01:27 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-07-18 00:01:27 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:01:27 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:01:27 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:01:27 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:01:27 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:01:27 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:01:27 INFO imstat:::: Statistics --- 2026-07-18 00:01:27 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:01:27 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:01:27 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:01:27 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:01:27 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-07-18 00:01:27 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-07-18 00:01:27 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-07-18 00:01:27 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-07-18 00:01:27 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-07-18 00:01:27 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:01:27 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:01:27 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:01:27 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:01:27 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:01:27 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:01:27 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 2026-07-18 00:01:27 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:01:26.794782 End time: 2026-07-18 00:01:26.814183 2026-07-18 00:01:27 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:01:27 INFO imstat::::casa ########################################## 2026-07-18 00:01:27 INFO phaseshift::::casa ########################################## 2026-07-18 00:01:27 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:01:27 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 40.100000000deg' ) 2026-07-18 00:01:27 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:01:27 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:01:27 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:01:27 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:01:27 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:01:27 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:01:27 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:01:27 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:01:27 INFO MSTransformManager::open Select data 2026-07-18 00:01:27 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:01:30 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:01:30 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 40.100000000deg' successfully parsed 2026-07-18 00:01:30 INFO phaseshift::::casa Shift phase center 2026-07-18 00:01:31 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:01:31 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:01:26.827150 End time: 2026-07-18 00:01:30.826860 2026-07-18 00:01:31 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:01:31 INFO phaseshift::::casa ########################################## 2026-07-18 00:01:31 INFO tclean::::casa ########################################## 2026-07-18 00:01:31 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:01:31 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, 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 ) 2026-07-18 00:01:31 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:01:31 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:01:31 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:01:31 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:01:31 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:01:31 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:01:31 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:01:31 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:01:31 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:01:31 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:01:31 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:01:31 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:01:32 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:01:32 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020937 2026-07-18 00:01:32 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:01:32 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:01:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:01:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:01:34 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:01:34 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:01:34 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:01:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:01:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:01:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:01:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:01:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:01:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:01:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:01:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:01:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:01:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:01:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:01:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:01:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:01:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:01:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:01:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:01:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:01:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:01:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:01:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:01:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:01:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:01:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:01:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:01:50 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:01:50 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:01:50 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:01:51 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:01:51 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:01:52 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:01:30.858268 End time: 2026-07-18 00:01:52.320861 2026-07-18 00:01:52 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:01:52 INFO tclean::::casa ########################################## 2026-07-18 00:01:52 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:01:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:01:52 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) 2026-07-18 00:01:52 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:01:52 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:01:52 2026****** 2026-07-18 00:01:52 INFO ImageFitter::fit+ 2026-07-18 00:01:52 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:01:52 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:01:52 INFO ImageFitter::fit+ --- region: 2026-07-18 00:01:52 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:01:52 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:01:52 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:01:52 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:01:52 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:01:52 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:01:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:01:52 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) 2026-07-18 00:01:52 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:01:52 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:01:52 INFO imstat::::casa ########################################## 2026-07-18 00:01:52 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:01:52 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 ) 2026-07-18 00:01:52 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:01:52 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:01:52 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:01:52 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:01:52 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:01:52 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) 2026-07-18 00:01:52 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:01:52 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:01:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:01:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:01:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:01:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:01:52 INFO imstat:::: Values --- 2026-07-18 00:01:52 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:01:52 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:01:52 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:01:52 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-07-18 00:01:52 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:01:52 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:01:52 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:01:52 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:01:52 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:01:52 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:01:52 INFO imstat:::: Statistics --- 2026-07-18 00:01:52 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:01:52 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:01:52 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:01:52 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:01:52 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-07-18 00:01:52 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-07-18 00:01:52 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-07-18 00:01:52 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-07-18 00:01:52 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-07-18 00:01:52 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:01:52 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:01:52 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:01:52 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:01:52 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:01:52 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:01:52 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 2026-07-18 00:01:52 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:01:52.375172 End time: 2026-07-18 00:01:52.396616 2026-07-18 00:01:52 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:01:52 INFO imstat::::casa ########################################## 2026-07-18 00:01:52 INFO phaseshift::::casa ########################################## 2026-07-18 00:01:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:01:52 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 0.699877030rad' ) 2026-07-18 00:01:52 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:01:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:01:52 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:01:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:01:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:01:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:01:52 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:01:52 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:01:52 INFO MSTransformManager::open Select data 2026-07-18 00:01:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:01:55 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:01:55 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 0.699877030rad' successfully parsed 2026-07-18 00:01:55 INFO phaseshift::::casa Shift phase center 2026-07-18 00:01:56 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:01:56 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:01:52.409370 End time: 2026-07-18 00:01:56.499713 2026-07-18 00:01:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:01:57 INFO phaseshift::::casa ########################################## 2026-07-18 00:01:57 INFO tclean::::casa ########################################## 2026-07-18 00:01:57 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:01:57 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, 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 ) 2026-07-18 00:01:57 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:01:57 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:01:57 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:01:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:01:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:01:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:01:57 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:01:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:01:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:01:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:01:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:01:57 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:01:58 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:01:58 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021578 2026-07-18 00:01:58 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:01:58 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:01:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:01:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:02:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:02:00 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:02:00 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:02:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:02:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:02:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:02:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:02:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:02:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:02:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:02:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:02:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:02:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:02:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:02:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:02:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:02:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:02:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:02:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:02:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:02:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:02:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:02:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:02:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:02:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:02:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:02:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:02:07 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:02:07 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:02:07 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:02:07 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:02:08 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:02:09 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:01:56.529054 End time: 2026-07-18 00:02:09.056296 2026-07-18 00:02:09 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:02:09 INFO tclean::::casa ########################################## 2026-07-18 00:02:09 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:02:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:02:09 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) 2026-07-18 00:02:09 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:02:09 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:02:09 2026****** 2026-07-18 00:02:09 INFO ImageFitter::fit+ 2026-07-18 00:02:09 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:02:09 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:02:09 INFO ImageFitter::fit+ --- region: 2026-07-18 00:02:09 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:02:09 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:02:09 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:02:09 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:02:09 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:02:09 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:02:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:02:09 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) 2026-07-18 00:02:09 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:02:09 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:02:09 INFO imstat::::casa ########################################## 2026-07-18 00:02:09 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:02:09 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 ) 2026-07-18 00:02:09 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:02:09 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:02:09 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:02:09 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:02:09 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:02:09 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) 2026-07-18 00:02:09 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:02:09 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:02:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:02:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:02:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:02:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:02:09 INFO imstat:::: Values --- 2026-07-18 00:02:09 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:02:09 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:02:09 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:02:09 INFO imstat:::: -- minimum value [min]: -7.77764e-05 Jy/beam 2026-07-18 00:02:09 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:02:09 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-07-18 00:02:09 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:02:09 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-07-18 00:02:09 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:02:09 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:02:09 INFO imstat:::: Statistics --- 2026-07-18 00:02:09 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:02:09 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:02:09 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:02:09 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:02:09 INFO imstat:::: -- Median of the pixel values [median]: -1.86664e-05 Jy/beam 2026-07-18 00:02:09 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-07-18 00:02:09 INFO imstat:::: -- IQR [quartile]: 3.56255e-05 Jy/beam 2026-07-18 00:02:09 INFO imstat:::: -- First quartile [q1]: -3.45078e-05 Jy/beam 2026-07-18 00:02:09 INFO imstat:::: -- Third quartile [q3]: 1.11764e-06 Jy/beam 2026-07-18 00:02:09 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:02:09 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:02:09 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:02:09 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:02:09 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:02:09 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:02:09 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 2026-07-18 00:02:09 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:02:09.115375 End time: 2026-07-18 00:02:09.143961 2026-07-18 00:02:09 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:02:09 INFO imstat::::casa ########################################## 2026-07-18 00:02:09 INFO phaseshift::::casa ########################################## 2026-07-18 00:02:09 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:02:09 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' ) 2026-07-18 00:02:09 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:02:09 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:02:09 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:02:09 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:02:09 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:02:09 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:02:09 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:02:09 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:02:09 INFO MSTransformManager::open Select data 2026-07-18 00:02:09 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:02:12 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:02:12 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 40d06m00' successfully parsed 2026-07-18 00:02:12 INFO phaseshift::::casa Shift phase center 2026-07-18 00:02:13 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:02:13 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:02:09.157466 End time: 2026-07-18 00:02:12.934128 2026-07-18 00:02:13 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:02:13 INFO phaseshift::::casa ########################################## 2026-07-18 00:02:13 INFO tclean::::casa ########################################## 2026-07-18 00:02:13 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:02:13 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, 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 ) 2026-07-18 00:02:13 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:02:13 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:02:13 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:02:13 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:02:13 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:02:13 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:02:13 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:02:13 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:02:13 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:02:13 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:02:13 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:02:13 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:02:14 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:02:14 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023609 2026-07-18 00:02:14 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:02:14 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:02:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:02:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:02:16 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:02:16 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:02:16 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:02:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:02:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:02:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:02:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:02:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:02:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:02:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:02:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:02:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:02:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:02:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:02:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:02:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:02:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:02:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:02:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:02:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:02:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:02:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:02:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:02:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:02:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:02:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:02:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:02:23 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:02:23 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:02:23 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:02:24 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:02:24 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:02:26 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:02:12.962719 End time: 2026-07-18 00:02:25.625442 2026-07-18 00:02:26 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:02:26 INFO tclean::::casa ########################################## 2026-07-18 00:02:26 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:02:26 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:02:26 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) 2026-07-18 00:02:26 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:02:26 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:02:26 2026****** 2026-07-18 00:02:26 INFO ImageFitter::fit+ 2026-07-18 00:02:26 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:02:26 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:02:26 INFO ImageFitter::fit+ --- region: 2026-07-18 00:02:26 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:02:26 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:02:26 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:02:26 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:02:26 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:02:26 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:02:26 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:02:26 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) 2026-07-18 00:02:26 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:02:26 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:02:26 INFO imstat::::casa ########################################## 2026-07-18 00:02:26 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:02:26 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 ) 2026-07-18 00:02:26 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:02:26 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:02:26 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:02:26 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:02:26 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:02:26 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) 2026-07-18 00:02:26 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:02:26 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:02:26 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:02:26 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:02:26 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:02:26 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:02:26 INFO imstat:::: Values --- 2026-07-18 00:02:26 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:02:26 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:02:26 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:02:26 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-07-18 00:02:26 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:02:26 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:02:26 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:02:26 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:02:26 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:02:26 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:02:26 INFO imstat:::: Statistics --- 2026-07-18 00:02:26 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:02:26 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:02:26 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:02:26 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:02:26 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-07-18 00:02:26 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-07-18 00:02:26 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-07-18 00:02:26 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-07-18 00:02:26 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-07-18 00:02:26 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:02:26 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:02:26 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:02:26 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:02:26 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:02:26 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:02:26 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 2026-07-18 00:02:26 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:02:25.678042 End time: 2026-07-18 00:02:25.697720 2026-07-18 00:02:26 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:02:26 INFO imstat::::casa ########################################## 2026-07-18 00:02:26 INFO phaseshift::::casa ########################################## 2026-07-18 00:02:26 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:02:26 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 02:40:24.0000' ) 2026-07-18 00:02:26 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:02:26 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:02:26 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:02:26 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:02:26 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:02:26 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:02:26 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:02:26 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:02:26 INFO MSTransformManager::open Select data 2026-07-18 00:02:26 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:02:29 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 ".". 2026-07-18 00:02:29 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 02:40:24.0000' successfully parsed 2026-07-18 00:02:29 INFO phaseshift::::casa Shift phase center 2026-07-18 00:02:29 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:02:29 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:02:25.711489 End time: 2026-07-18 00:02:29.450143 2026-07-18 00:02:29 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:02:29 INFO phaseshift::::casa ########################################## 2026-07-18 00:02:29 INFO tclean::::casa ########################################## 2026-07-18 00:02:29 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:02:29 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, 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 ) 2026-07-18 00:02:29 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:02:29 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:02:29 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:02:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:02:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:02:30 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:02:30 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:02:30 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:02:30 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:02:30 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:02:30 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:02:30 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:02:31 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:02:31 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020699 2026-07-18 00:02:31 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:02:31 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:02:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:02:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:02:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:02:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:02:33 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:02:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:02:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:02:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:02:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:02:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:02:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:02:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:02:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:02:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:02:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:02:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:02:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:02:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:02:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:02:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:02:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:02:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:02:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:02:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:02:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:02:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:02:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:02:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:02:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:02:39 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:02:39 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:02:39 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:02:40 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:02:40 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:02:41 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:02:29.480080 End time: 2026-07-18 00:02:41.197264 2026-07-18 00:02:41 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:02:41 INFO tclean::::casa ########################################## 2026-07-18 00:02:41 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:02:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:02:41 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) 2026-07-18 00:02:41 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:02:41 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:02:41 2026****** 2026-07-18 00:02:41 INFO ImageFitter::fit+ 2026-07-18 00:02:41 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:02:41 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:02:41 INFO ImageFitter::fit+ --- region: 2026-07-18 00:02:41 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:02:41 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:02:41 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:02:41 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:02:41 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:02:41 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:02:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:02:41 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) 2026-07-18 00:02:41 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:02:41 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:02:41 INFO imstat::::casa ########################################## 2026-07-18 00:02:41 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:02:41 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 ) 2026-07-18 00:02:41 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:02:41 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:02:41 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:02:41 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:02:41 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:02:41 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) 2026-07-18 00:02:41 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:02:41 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:02:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:02:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:02:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:02:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:02:41 INFO imstat:::: Values --- 2026-07-18 00:02:41 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:02:41 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:02:41 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:02:41 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-07-18 00:02:41 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:02:41 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:02:41 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:02:41 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:02:41 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:02:41 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:02:41 INFO imstat:::: Statistics --- 2026-07-18 00:02:41 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:02:41 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:02:41 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:02:41 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:02:41 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-07-18 00:02:41 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-07-18 00:02:41 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-07-18 00:02:41 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-07-18 00:02:41 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-07-18 00:02:41 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:02:41 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:02:41 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:02:41 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:02:41 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:02:41 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:02:41 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 2026-07-18 00:02:41 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:02:41.251935 End time: 2026-07-18 00:02:41.271231 2026-07-18 00:02:41 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:02:41 INFO imstat::::casa ########################################## 2026-07-18 00:02:41 INFO phaseshift::::casa ########################################## 2026-07-18 00:02:41 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:02:41 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 40.100000000deg' ) 2026-07-18 00:02:41 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:02:41 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:02:41 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:02:41 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:02:41 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:02:41 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:02:41 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:02:41 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:02:41 INFO MSTransformManager::open Select data 2026-07-18 00:02:41 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:02:44 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:02:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 40.100000000deg' successfully parsed 2026-07-18 00:02:44 INFO phaseshift::::casa Shift phase center 2026-07-18 00:02:46 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:02:46 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:02:41.284548 End time: 2026-07-18 00:02:45.580554 2026-07-18 00:02:46 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:02:46 INFO phaseshift::::casa ########################################## 2026-07-18 00:02:46 INFO tclean::::casa ########################################## 2026-07-18 00:02:46 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:02:46 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, 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 ) 2026-07-18 00:02:46 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:02:46 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:02:46 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:02:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:02:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:02:46 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:02:46 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:02:46 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:02:46 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:02:46 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:02:46 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:02:46 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:02:47 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:02:47 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02076 2026-07-18 00:02:47 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:02:47 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:02:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:02:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:02:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:02:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:02:49 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:02:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:02:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:02:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:02:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:02:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:02:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:02:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:02:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:02:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:02:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:02:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:02:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:02:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:02:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:02:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:02:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:02:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:02:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:02:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:02:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:02:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:02:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:02:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:02:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:02:56 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:02:56 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:02:56 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:02:57 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:02:57 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:02:59 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:02:45.610101 End time: 2026-07-18 00:02:58.796525 2026-07-18 00:02:59 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:02:59 INFO tclean::::casa ########################################## 2026-07-18 00:02:59 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:02:59 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:02:59 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) 2026-07-18 00:02:59 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:02:59 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:02:59 2026****** 2026-07-18 00:02:59 INFO ImageFitter::fit+ 2026-07-18 00:02:59 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:02:59 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:02:59 INFO ImageFitter::fit+ --- region: 2026-07-18 00:02:59 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:02:59 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:02:59 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:02:59 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:02:59 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:02:59 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:02:59 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:02:59 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) 2026-07-18 00:02:59 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:02:59 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:02:59 INFO imstat::::casa ########################################## 2026-07-18 00:02:59 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:02:59 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 ) 2026-07-18 00:02:59 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:02:59 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:02:59 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:02:59 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:02:59 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:02:59 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) 2026-07-18 00:02:59 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:02:59 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:02:59 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:02:59 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:02:59 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:02:59 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:02:59 INFO imstat:::: Values --- 2026-07-18 00:02:59 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:02:59 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:02:59 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:02:59 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-07-18 00:02:59 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:02:59 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:02:59 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:02:59 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:02:59 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:02:59 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:02:59 INFO imstat:::: Statistics --- 2026-07-18 00:02:59 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:02:59 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:02:59 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:02:59 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:02:59 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-07-18 00:02:59 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-07-18 00:02:59 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-07-18 00:02:59 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-07-18 00:02:59 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-07-18 00:02:59 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:02:59 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:02:59 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:02:59 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:02:59 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:02:59 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:02:59 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 2026-07-18 00:02:59 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:02:58.858568 End time: 2026-07-18 00:02:58.877366 2026-07-18 00:02:59 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:02:59 INFO imstat::::casa ########################################## 2026-07-18 00:02:59 INFO phaseshift::::casa ########################################## 2026-07-18 00:02:59 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:02:59 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' ) 2026-07-18 00:02:59 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:02:59 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:02:59 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:02:59 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:02:59 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:02:59 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:02:59 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:02:59 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:02:59 INFO MSTransformManager::open Select data 2026-07-18 00:02:59 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:03:02 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:03:02 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 0.699877030rad' successfully parsed 2026-07-18 00:03:02 INFO phaseshift::::casa Shift phase center 2026-07-18 00:03:03 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:03:03 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:02:58.891020 End time: 2026-07-18 00:03:02.881728 2026-07-18 00:03:03 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:03:03 INFO phaseshift::::casa ########################################## 2026-07-18 00:03:03 INFO tclean::::casa ########################################## 2026-07-18 00:03:03 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:03:03 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, 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 ) 2026-07-18 00:03:03 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:03:03 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:03:03 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:03:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:03:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:03:03 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:03:03 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:03:03 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:03:03 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:03:03 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:03:03 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:03:03 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:03:05 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:03:05 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021879 2026-07-18 00:03:05 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:03:05 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:03:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:03:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:03:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:03:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:03:07 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:03:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:03:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:03:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:03:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:03:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:03:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:03:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:03:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:03:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:03:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:03:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:03:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:03:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:03:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:03:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:03:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:03:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:03:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:03:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:03:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:03:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:03:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:03:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:03:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:03:13 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:03:13 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:03:13 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:03:13 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:03:14 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:03:15 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:03:02.913307 End time: 2026-07-18 00:03:15.003069 2026-07-18 00:03:15 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:03:15 INFO tclean::::casa ########################################## 2026-07-18 00:03:15 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:03:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:03:15 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) 2026-07-18 00:03:15 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:03:15 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:03:15 2026****** 2026-07-18 00:03:15 INFO ImageFitter::fit+ 2026-07-18 00:03:15 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:03:15 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:03:15 INFO ImageFitter::fit+ --- region: 2026-07-18 00:03:15 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:03:15 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:03:15 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:03:15 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:03:15 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:03:15 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:03:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:03:15 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) 2026-07-18 00:03:15 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126487 Jy 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:03:15 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:03:15 INFO imstat::::casa ########################################## 2026-07-18 00:03:15 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:03:15 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 ) 2026-07-18 00:03:15 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:03:15 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:03:15 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:03:15 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:03:15 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:03:15 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) 2026-07-18 00:03:15 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:03:15 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:03:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:03:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:03:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:03:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:03:15 INFO imstat:::: Values --- 2026-07-18 00:03:15 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:03:15 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:03:15 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:03:15 INFO imstat:::: -- minimum value [min]: -7.77738e-05 Jy/beam 2026-07-18 00:03:15 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:03:15 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:03:15 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:03:15 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:03:15 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:03:15 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:03:15 INFO imstat:::: Statistics --- 2026-07-18 00:03:15 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:03:15 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:03:15 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:03:15 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:03:15 INFO imstat:::: -- Median of the pixel values [median]: -1.86662e-05 Jy/beam 2026-07-18 00:03:15 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73577e-05 Jy/beam 2026-07-18 00:03:15 INFO imstat:::: -- IQR [quartile]: 3.56242e-05 Jy/beam 2026-07-18 00:03:15 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-07-18 00:03:15 INFO imstat:::: -- Third quartile [q3]: 1.11673e-06 Jy/beam 2026-07-18 00:03:15 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:03:15 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:03:15 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:03:15 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:03:15 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:03:15 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:03:15 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 2026-07-18 00:03:15 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:03:15.055069 End time: 2026-07-18 00:03:15.074026 2026-07-18 00:03:15 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:03:15 INFO imstat::::casa ########################################## 2026-07-18 00:03:15 INFO phaseshift::::casa ########################################## 2026-07-18 00:03:15 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:03:15 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' ) 2026-07-18 00:03:15 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:03:15 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:03:15 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:03:15 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:03:15 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:03:15 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:03:15 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:03:15 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:03:15 INFO MSTransformManager::open Select data 2026-07-18 00:03:15 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:03:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:03:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 40d06m00' successfully parsed 2026-07-18 00:03:18 INFO phaseshift::::casa Shift phase center 2026-07-18 00:03:19 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:03:19 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:03:15.086975 End time: 2026-07-18 00:03:19.123501 2026-07-18 00:03:19 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:03:19 INFO phaseshift::::casa ########################################## 2026-07-18 00:03:19 INFO tclean::::casa ########################################## 2026-07-18 00:03:19 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:03:19 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, 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 ) 2026-07-18 00:03:19 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:03:19 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:03:19 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:03:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:03:19 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:03:19 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:03:19 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:03:19 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:03:19 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:03:19 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:03:19 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:03:19 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:03:21 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:03:21 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021386 2026-07-18 00:03:21 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:03:21 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:03:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:03:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:03:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:03:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:03:23 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:03:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:03:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:03:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:03:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:03:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:03:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:03:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:03:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:03:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:03:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:03:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:03:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:03:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:03:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:03:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:03:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:03:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:03:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:03:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:03:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:03:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:03:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:03:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:03:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:03:29 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:03:29 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:03:29 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:03:30 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:03:31 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:03:32 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:03:19.154420 End time: 2026-07-18 00:03:32.043628 2026-07-18 00:03:32 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:03:32 INFO tclean::::casa ########################################## 2026-07-18 00:03:32 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:03:32 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:03:32 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) 2026-07-18 00:03:32 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:03:32 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:03:32 2026****** 2026-07-18 00:03:32 INFO ImageFitter::fit+ 2026-07-18 00:03:32 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:03:32 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:03:32 INFO ImageFitter::fit+ --- region: 2026-07-18 00:03:32 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:03:32 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:03:32 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:03:32 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:03:32 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:03:32 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:03:32 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:03:32 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) 2026-07-18 00:03:32 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:03:32 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:03:32 INFO imstat::::casa ########################################## 2026-07-18 00:03:32 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:03:32 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 ) 2026-07-18 00:03:32 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:03:32 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:03:32 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:03:32 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:03:32 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:03:32 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) 2026-07-18 00:03:32 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:03:32 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:03:32 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:03:32 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:03:32 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:03:32 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:03:32 INFO imstat:::: Values --- 2026-07-18 00:03:32 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:03:32 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:03:32 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:03:32 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-07-18 00:03:32 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:03:32 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-07-18 00:03:32 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:03:32 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-07-18 00:03:32 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:03:32 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:03:32 INFO imstat:::: Statistics --- 2026-07-18 00:03:32 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:03:32 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:03:32 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:03:32 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:03:32 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-07-18 00:03:32 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-07-18 00:03:32 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-07-18 00:03:32 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-07-18 00:03:32 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-07-18 00:03:32 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:03:32 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:03:32 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:03:32 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:03:32 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:03:32 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:03:32 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 2026-07-18 00:03:32 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:03:32.111397 End time: 2026-07-18 00:03:32.131016 2026-07-18 00:03:32 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:03:32 INFO imstat::::casa ########################################## 2026-07-18 00:03:32 INFO phaseshift::::casa ########################################## 2026-07-18 00:03:32 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:03:32 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' ) 2026-07-18 00:03:32 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:03:32 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:03:32 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:03:32 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:03:32 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:03:32 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:03:32 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:03:32 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:03:32 INFO MSTransformManager::open Select data 2026-07-18 00:03:32 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:03:35 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 ".". 2026-07-18 00:03:35 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 02:40:24.0000' successfully parsed 2026-07-18 00:03:35 INFO phaseshift::::casa Shift phase center 2026-07-18 00:03:36 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:03:36 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:03:32.144368 End time: 2026-07-18 00:03:36.397248 2026-07-18 00:03:36 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:03:36 INFO phaseshift::::casa ########################################## 2026-07-18 00:03:36 INFO tclean::::casa ########################################## 2026-07-18 00:03:36 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:03:36 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, 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 ) 2026-07-18 00:03:36 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:03:36 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:03:36 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:03:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:03:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:03:37 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:03:37 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:03:37 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:03:37 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:03:37 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:03:37 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:03:37 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:03:38 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:03:38 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021063 2026-07-18 00:03:38 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:03:38 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:03:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:03:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:03:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:03:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:03:40 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:03:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:03:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:03:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:03:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:03:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:03:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:03:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:03:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:03:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:03:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:03:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:03:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:03:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:03:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:03:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:03:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:03:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:03:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:03:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:03:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:03:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:03:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:03:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:03:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:03:46 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:03:46 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:03:46 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:03:47 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:03:47 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:03:48 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:03:36.427886 End time: 2026-07-18 00:03:48.334153 2026-07-18 00:03:48 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:03:48 INFO tclean::::casa ########################################## 2026-07-18 00:03:48 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:03:48 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:03:48 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) 2026-07-18 00:03:48 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:03:48 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:03:48 2026****** 2026-07-18 00:03:48 INFO ImageFitter::fit+ 2026-07-18 00:03:48 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:03:48 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:03:48 INFO ImageFitter::fit+ --- region: 2026-07-18 00:03:48 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:03:48 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:03:48 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:03:48 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:03:48 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:03:48 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:03:48 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:03:48 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) 2026-07-18 00:03:48 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:03:48 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:03:48 INFO imstat::::casa ########################################## 2026-07-18 00:03:48 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:03:48 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 ) 2026-07-18 00:03:48 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:03:48 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:03:48 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:03:48 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:03:48 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:03:48 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) 2026-07-18 00:03:48 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:03:48 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:03:48 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:03:48 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:03:48 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:03:48 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:03:48 INFO imstat:::: Values --- 2026-07-18 00:03:48 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:03:48 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:03:48 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:03:48 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-07-18 00:03:48 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:03:48 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-07-18 00:03:48 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:03:48 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-07-18 00:03:48 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:03:48 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:03:48 INFO imstat:::: Statistics --- 2026-07-18 00:03:48 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:03:48 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:03:48 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:03:48 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:03:48 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-07-18 00:03:48 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-07-18 00:03:48 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-07-18 00:03:48 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-07-18 00:03:48 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-07-18 00:03:48 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:03:48 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:03:48 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:03:48 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:03:48 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:03:48 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:03:48 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 2026-07-18 00:03:48 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:03:48.390553 End time: 2026-07-18 00:03:48.411806 2026-07-18 00:03:48 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:03:48 INFO imstat::::casa ########################################## 2026-07-18 00:03:48 INFO phaseshift::::casa ########################################## 2026-07-18 00:03:48 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:03:48 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 40.100000000deg' ) 2026-07-18 00:03:48 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:03:48 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:03:48 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:03:48 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:03:48 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:03:48 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:03:48 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:03:48 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:03:48 INFO MSTransformManager::open Select data 2026-07-18 00:03:48 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:03:51 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:03:51 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 40.100000000deg' successfully parsed 2026-07-18 00:03:51 INFO phaseshift::::casa Shift phase center 2026-07-18 00:03:52 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:03:52 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:03:48.425191 End time: 2026-07-18 00:03:51.586279 2026-07-18 00:03:52 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:03:52 INFO phaseshift::::casa ########################################## 2026-07-18 00:03:52 INFO tclean::::casa ########################################## 2026-07-18 00:03:52 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:03:52 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, 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 ) 2026-07-18 00:03:52 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:03:52 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:03:52 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:03:52 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:03:52 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:03:52 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:03:52 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:03:52 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:03:52 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:03:52 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:03:52 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:03:52 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:03:53 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:03:53 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021506 2026-07-18 00:03:53 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:03:53 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:03:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:03:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:03:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:03:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:03:55 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:03:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:03:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:03:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:03:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:03:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:03:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:03:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:03:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:03:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:03:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:03:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:03:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:03:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:03:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:03:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:03:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:03:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:04:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:04:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:04:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:04:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:04:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:04:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:04:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:04:02 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:04:02 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:04:02 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:04:03 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:04:03 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:04:04 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:03:51.614700 End time: 2026-07-18 00:04:04.165343 2026-07-18 00:04:04 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:04:04 INFO tclean::::casa ########################################## 2026-07-18 00:04:04 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:04:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:04:04 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) 2026-07-18 00:04:04 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:04:04 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:04:04 2026****** 2026-07-18 00:04:04 INFO ImageFitter::fit+ 2026-07-18 00:04:04 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:04:04 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:04:04 INFO ImageFitter::fit+ --- region: 2026-07-18 00:04:04 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:04:04 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:04:04 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:04:04 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:04:04 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:04:04 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:04:04 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:04:04 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) 2026-07-18 00:04:04 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:04:04 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:04:04 INFO imstat::::casa ########################################## 2026-07-18 00:04:04 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:04:04 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 ) 2026-07-18 00:04:04 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:04:04 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:04:04 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:04:04 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:04:04 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:04:04 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) 2026-07-18 00:04:04 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:04:04 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:04:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:04:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:04:04 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:04:04 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:04:04 INFO imstat:::: Values --- 2026-07-18 00:04:04 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:04:04 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:04:04 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:04:04 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-07-18 00:04:04 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:04:04 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-07-18 00:04:04 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:04:04 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-07-18 00:04:04 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:04:04 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:04:04 INFO imstat:::: Statistics --- 2026-07-18 00:04:04 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:04:04 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:04:04 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:04:04 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:04:04 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-07-18 00:04:04 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-07-18 00:04:04 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-07-18 00:04:04 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-07-18 00:04:04 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-07-18 00:04:04 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:04:04 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:04:04 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:04:04 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:04:04 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:04:04 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:04:04 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 2026-07-18 00:04:04 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:04:04.220957 End time: 2026-07-18 00:04:04.252997 2026-07-18 00:04:04 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:04:04 INFO imstat::::casa ########################################## 2026-07-18 00:04:04 INFO phaseshift::::casa ########################################## 2026-07-18 00:04:04 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:04:04 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 0.699877030rad' ) 2026-07-18 00:04:04 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:04:04 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:04:04 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:04:04 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:04:04 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:04:04 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:04:04 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:04:04 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:04:04 INFO MSTransformManager::open Select data 2026-07-18 00:04:04 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:04:07 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:04:07 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 0.699877030rad' successfully parsed 2026-07-18 00:04:07 INFO phaseshift::::casa Shift phase center 2026-07-18 00:04:08 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:04:08 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:04:04.267108 End time: 2026-07-18 00:04:08.093194 2026-07-18 00:04:08 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:04:08 INFO phaseshift::::casa ########################################## 2026-07-18 00:04:08 INFO tclean::::casa ########################################## 2026-07-18 00:04:08 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:04:08 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, 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 ) 2026-07-18 00:04:08 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:04:08 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:04:08 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:04:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:04:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:04:08 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:04:08 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:04:08 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:04:08 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:04:08 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:04:08 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:04:08 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:04:09 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:04:09 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020723 2026-07-18 00:04:09 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:04:09 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:04:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:04:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:04:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:04:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:04:11 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:04:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:04:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:04:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:04:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:04:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:04:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:04:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:04:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:04:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:04:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:04:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:04:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:04:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:04:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:04:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:04:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:04:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:04:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:04:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:04:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:04:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:04:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:04:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:04:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:04:17 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:04:17 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:04:17 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:04:18 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:04:18 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:04:19 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:04:08.123748 End time: 2026-07-18 00:04:19.159149 2026-07-18 00:04:19 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:04:19 INFO tclean::::casa ########################################## 2026-07-18 00:04:19 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:04:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:04:19 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) 2026-07-18 00:04:19 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:04:19 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:04:19 2026****** 2026-07-18 00:04:19 INFO ImageFitter::fit+ 2026-07-18 00:04:19 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:04:19 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:04:19 INFO ImageFitter::fit+ --- region: 2026-07-18 00:04:19 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:04:19 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:04:19 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:04:19 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:04:19 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:04:19 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:04:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:04:19 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) 2026-07-18 00:04:19 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:04:19 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:04:19 INFO imstat::::casa ########################################## 2026-07-18 00:04:19 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:04:19 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 ) 2026-07-18 00:04:19 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:04:19 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:04:19 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:04:19 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:04:19 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:04:19 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) 2026-07-18 00:04:19 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:04:19 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:04:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:04:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:04:19 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:04:19 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:04:19 INFO imstat:::: Values --- 2026-07-18 00:04:19 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:04:19 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:04:19 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:04:19 INFO imstat:::: -- minimum value [min]: -7.77793e-05 Jy/beam 2026-07-18 00:04:19 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:04:19 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-07-18 00:04:19 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:04:19 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-07-18 00:04:19 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:04:19 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:04:19 INFO imstat:::: Statistics --- 2026-07-18 00:04:19 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:04:19 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:04:19 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:04:19 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:04:19 INFO imstat:::: -- Median of the pixel values [median]: -1.86714e-05 Jy/beam 2026-07-18 00:04:19 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73592e-05 Jy/beam 2026-07-18 00:04:19 INFO imstat:::: -- IQR [quartile]: 3.55982e-05 Jy/beam 2026-07-18 00:04:19 INFO imstat:::: -- First quartile [q1]: -3.45035e-05 Jy/beam 2026-07-18 00:04:19 INFO imstat:::: -- Third quartile [q3]: 1.09469e-06 Jy/beam 2026-07-18 00:04:19 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:04:19 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:04:19 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:04:19 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:04:19 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:04:19 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:04:19 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 2026-07-18 00:04:19 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:04:19.211611 End time: 2026-07-18 00:04:19.231620 2026-07-18 00:04:19 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:04:19 INFO imstat::::casa ########################################## 2026-07-18 00:04:19 INFO phaseshift::::casa ########################################## 2026-07-18 00:04:19 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:04:19 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 40d06m0.0019' ) 2026-07-18 00:04:19 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:04:19 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:04:19 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:04:19 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:04:19 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:04:19 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:04:19 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:04:19 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:04:19 INFO MSTransformManager::open Select data 2026-07-18 00:04:19 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:04:23 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:04:23 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 40d06m0.0019' successfully parsed 2026-07-18 00:04:23 INFO phaseshift::::casa Shift phase center 2026-07-18 00:04:24 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:04:24 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:04:19.245235 End time: 2026-07-18 00:04:23.664633 2026-07-18 00:04:24 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:04:24 INFO phaseshift::::casa ########################################## 2026-07-18 00:04:24 INFO tclean::::casa ########################################## 2026-07-18 00:04:24 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:04:24 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, 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 ) 2026-07-18 00:04:24 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:04:24 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:04:24 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:04:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:04:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:04:24 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:04:24 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:04:24 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:04:24 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:04:24 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:04:24 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:04:24 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:04:25 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:04:25 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020762 2026-07-18 00:04:25 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:04:25 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:04:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:04:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:04:27 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:04:27 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:04:27 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:04:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:04:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:04:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:04:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:04:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:04:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:04:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:04:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:04:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:04:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:04:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:04:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:04:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:04:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:04:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:04:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:04:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:04:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:04:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:04:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:04:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:04:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:04:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:04:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:04:33 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:04:33 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:04:33 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:04:34 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:04:34 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:04:36 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:04:23.694759 End time: 2026-07-18 00:04:35.511587 2026-07-18 00:04:36 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:04:36 INFO tclean::::casa ########################################## 2026-07-18 00:04:36 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:04:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:04:36 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) 2026-07-18 00:04:36 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:04:36 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:04:36 2026****** 2026-07-18 00:04:36 INFO ImageFitter::fit+ 2026-07-18 00:04:36 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:04:36 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:04:36 INFO ImageFitter::fit+ --- region: 2026-07-18 00:04:36 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:04:36 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:04:36 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:04:36 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:04:36 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:04:36 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:04:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:04:36 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) 2026-07-18 00:04:36 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:04:36 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:04:36 INFO imstat::::casa ########################################## 2026-07-18 00:04:36 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:04:36 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 ) 2026-07-18 00:04:36 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:04:36 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:04:36 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:04:36 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:04:36 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:04:36 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) 2026-07-18 00:04:36 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:04:36 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:04:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:04:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:04:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:04:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:04:36 INFO imstat:::: Values --- 2026-07-18 00:04:36 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:04:36 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:04:36 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:04:36 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-07-18 00:04:36 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:04:36 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:04:36 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:04:36 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-07-18 00:04:36 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:04:36 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:04:36 INFO imstat:::: Statistics --- 2026-07-18 00:04:36 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:04:36 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:04:36 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:04:36 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:04:36 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-07-18 00:04:36 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-07-18 00:04:36 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-07-18 00:04:36 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-07-18 00:04:36 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-07-18 00:04:36 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:04:36 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:04:36 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:04:36 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:04:36 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:04:36 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:04:36 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 2026-07-18 00:04:36 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:04:35.568731 End time: 2026-07-18 00:04:35.590556 2026-07-18 00:04:36 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:04:36 INFO imstat::::casa ########################################## 2026-07-18 00:04:36 INFO phaseshift::::casa ########################################## 2026-07-18 00:04:36 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:04:36 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 02:40:24.0001' ) 2026-07-18 00:04:36 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:04:36 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:04:36 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:04:36 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:04:36 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:04:36 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:04:36 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:04:36 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:04:36 INFO MSTransformManager::open Select data 2026-07-18 00:04:36 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:04:38 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 ".". 2026-07-18 00:04:38 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 02:40:24.0001' successfully parsed 2026-07-18 00:04:38 INFO phaseshift::::casa Shift phase center 2026-07-18 00:04:39 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:04:39 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:04:35.603630 End time: 2026-07-18 00:04:39.284565 2026-07-18 00:04:39 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:04:39 INFO phaseshift::::casa ########################################## 2026-07-18 00:04:39 INFO tclean::::casa ########################################## 2026-07-18 00:04:39 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:04:39 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, 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 ) 2026-07-18 00:04:39 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:04:39 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:04:39 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:04:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:04:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:04:39 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:04:39 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:04:39 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:04:39 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:04:39 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:04:39 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:04:39 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:04:41 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:04:41 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023127 2026-07-18 00:04:41 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:04:41 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:04:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:04:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:04:43 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:04:43 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:04:43 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:04:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:04:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:04:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:04:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:04:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:04:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:04:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:04:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:04:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:04:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:04:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:04:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:04:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:04:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:04:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:04:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:04:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:04:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:04:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:04:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:04:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:04:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:04:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:04:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:04:48 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:04:48 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:04:48 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:04:49 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:04:49 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:04:51 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:04:39.315139 End time: 2026-07-18 00:04:50.545953 2026-07-18 00:04:51 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:04:51 INFO tclean::::casa ########################################## 2026-07-18 00:04:51 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:04:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:04:51 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) 2026-07-18 00:04:51 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:04:51 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:04:51 2026****** 2026-07-18 00:04:51 INFO ImageFitter::fit+ 2026-07-18 00:04:51 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:04:51 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:04:51 INFO ImageFitter::fit+ --- region: 2026-07-18 00:04:51 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:04:51 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:04:51 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:04:51 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:04:51 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:04:51 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:04:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:04:51 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) 2026-07-18 00:04:51 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:04:51 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:04:51 INFO imstat::::casa ########################################## 2026-07-18 00:04:51 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:04:51 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 ) 2026-07-18 00:04:51 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:04:51 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:04:51 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:04:51 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:04:51 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:04:51 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) 2026-07-18 00:04:51 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:04:51 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:04:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:04:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:04:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:04:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:04:51 INFO imstat:::: Values --- 2026-07-18 00:04:51 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:04:51 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:04:51 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:04:51 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-07-18 00:04:51 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:04:51 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-07-18 00:04:51 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:04:51 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-07-18 00:04:51 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:04:51 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:04:51 INFO imstat:::: Statistics --- 2026-07-18 00:04:51 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:04:51 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:04:51 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:04:51 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:04:51 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-07-18 00:04:51 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-07-18 00:04:51 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-07-18 00:04:51 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-07-18 00:04:51 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-07-18 00:04:51 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:04:51 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:04:51 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:04:51 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:04:51 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:04:51 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:04:51 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 2026-07-18 00:04:51 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:04:50.601663 End time: 2026-07-18 00:04:50.624553 2026-07-18 00:04:51 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:04:51 INFO imstat::::casa ########################################## 2026-07-18 00:04:51 INFO phaseshift::::casa ########################################## 2026-07-18 00:04:51 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:04:51 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' ) 2026-07-18 00:04:51 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:04:51 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:04:51 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:04:51 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:04:51 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:04:51 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:04:51 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:04:51 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:04:51 INFO MSTransformManager::open Select data 2026-07-18 00:04:51 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:04:53 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:04:53 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 40.100000528deg' successfully parsed 2026-07-18 00:04:53 INFO phaseshift::::casa Shift phase center 2026-07-18 00:04:54 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:04:54 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:04:50.638577 End time: 2026-07-18 00:04:54.339785 2026-07-18 00:04:54 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:04:54 INFO phaseshift::::casa ########################################## 2026-07-18 00:04:54 INFO tclean::::casa ########################################## 2026-07-18 00:04:54 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:04:54 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, 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 ) 2026-07-18 00:04:54 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:04:54 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:04:54 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:04:54 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:04:54 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:04:54 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:04:54 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:04:54 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:04:54 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:04:54 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:04:54 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:04:54 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:04:56 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:04:56 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020653 2026-07-18 00:04:56 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:04:56 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:04:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:04:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:04:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:04:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:04:58 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:04:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:04:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:04:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:04:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:04:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:05:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:05:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:05:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:05:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:05:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:05:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:05:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:05:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:05:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:05:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:05:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:05:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:05:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:05:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:05:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:05:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:05:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:05:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:05:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:05:05 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:05:05 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:05:05 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:05:06 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:05:06 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:05:07 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:04:54.369104 End time: 2026-07-18 00:05:07.274932 2026-07-18 00:05:07 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:05:07 INFO tclean::::casa ########################################## 2026-07-18 00:05:07 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:05:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:05:07 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) 2026-07-18 00:05:07 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:05:07 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:05:07 2026****** 2026-07-18 00:05:07 INFO ImageFitter::fit+ 2026-07-18 00:05:07 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:05:07 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:05:07 INFO ImageFitter::fit+ --- region: 2026-07-18 00:05:07 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:05:07 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:05:07 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:05:07 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:05:07 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:05:07 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:05:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:05:07 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) 2026-07-18 00:05:07 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:05:07 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:05:07 INFO imstat::::casa ########################################## 2026-07-18 00:05:07 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:05:07 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 ) 2026-07-18 00:05:07 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:05:07 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:05:07 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:05:07 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:05:07 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:05:07 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) 2026-07-18 00:05:07 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:05:07 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:05:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:05:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:05:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:05:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:05:07 INFO imstat:::: Values --- 2026-07-18 00:05:07 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:05:07 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:05:07 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:05:07 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-07-18 00:05:07 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:05:07 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:05:07 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:05:07 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-07-18 00:05:07 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:05:07 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:05:07 INFO imstat:::: Statistics --- 2026-07-18 00:05:07 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:05:07 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:05:07 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:05:07 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:05:07 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-07-18 00:05:07 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-07-18 00:05:07 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-07-18 00:05:07 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-07-18 00:05:07 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-07-18 00:05:07 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:05:07 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:05:07 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:05:07 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:05:07 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:05:07 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:05:07 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 2026-07-18 00:05:07 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:05:07.329287 End time: 2026-07-18 00:05:07.349538 2026-07-18 00:05:07 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:05:07 INFO imstat::::casa ########################################## 2026-07-18 00:05:07 INFO phaseshift::::casa ########################################## 2026-07-18 00:05:07 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:05:07 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' ) 2026-07-18 00:05:07 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:05:07 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:05:07 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:05:07 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:05:07 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:05:07 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:05:07 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:05:07 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:05:07 INFO MSTransformManager::open Select data 2026-07-18 00:05:07 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:05:10 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:05:10 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 0.699877039rad' successfully parsed 2026-07-18 00:05:10 INFO phaseshift::::casa Shift phase center 2026-07-18 00:05:11 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:05:11 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:05:07.363332 End time: 2026-07-18 00:05:11.370060 2026-07-18 00:05:11 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:05:11 INFO phaseshift::::casa ########################################## 2026-07-18 00:05:11 INFO tclean::::casa ########################################## 2026-07-18 00:05:11 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:05:11 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, 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 ) 2026-07-18 00:05:11 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:05:11 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:05:11 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:05:12 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:05:12 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:05:12 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:05:12 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:05:12 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:05:12 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:05:12 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:05:12 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:05:12 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:05:13 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:05:13 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020667 2026-07-18 00:05:13 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:05:13 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:05:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:05:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:05:15 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:05:15 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:05:15 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:05:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:05:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:05:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:05:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:05:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:05:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:05:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:05:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:05:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:05:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:05:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:05:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:05:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:05:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:05:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:05:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:05:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:05:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:05:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:05:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:05:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:05:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:05:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:05:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:05:21 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:05:21 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:05:21 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:05:22 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:05:22 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:05:23 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:05:11.400715 End time: 2026-07-18 00:05:23.397604 2026-07-18 00:05:23 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:05:23 INFO tclean::::casa ########################################## 2026-07-18 00:05:23 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:05:23 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:05:23 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) 2026-07-18 00:05:23 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:05:23 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:05:23 2026****** 2026-07-18 00:05:23 INFO ImageFitter::fit+ 2026-07-18 00:05:23 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:05:23 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:05:23 INFO ImageFitter::fit+ --- region: 2026-07-18 00:05:23 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:05:23 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:05:23 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:05:23 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:05:23 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:05:23 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:05:23 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:05:23 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) 2026-07-18 00:05:23 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:05:23 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:05:23 INFO imstat::::casa ########################################## 2026-07-18 00:05:23 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:05:23 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 ) 2026-07-18 00:05:23 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:05:23 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:05:23 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:05:23 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:05:23 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:05:23 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) 2026-07-18 00:05:23 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:05:23 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:05:23 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:05:23 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:05:23 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:05:23 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:05:23 INFO imstat:::: Values --- 2026-07-18 00:05:23 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:05:23 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:05:23 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:05:23 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-07-18 00:05:23 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:05:23 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:05:23 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:05:23 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-07-18 00:05:23 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:05:23 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:05:23 INFO imstat:::: Statistics --- 2026-07-18 00:05:23 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:05:23 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:05:23 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:05:23 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:05:23 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-07-18 00:05:23 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-07-18 00:05:23 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-07-18 00:05:23 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-07-18 00:05:23 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-07-18 00:05:23 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:05:23 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:05:23 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:05:23 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:05:23 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:05:23 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:05:23 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 2026-07-18 00:05:23 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:05:23.461007 End time: 2026-07-18 00:05:23.482324 2026-07-18 00:05:23 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:05:23 INFO imstat::::casa ########################################## 2026-07-18 00:05:23 INFO phaseshift::::casa ########################################## 2026-07-18 00:05:23 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:05:23 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' ) 2026-07-18 00:05:24 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:05:24 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:05:24 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:05:24 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:05:24 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:05:24 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:05:24 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:05:24 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:05:24 INFO MSTransformManager::open Select data 2026-07-18 00:05:24 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:05:27 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:05:27 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 40d06m0.0019' successfully parsed 2026-07-18 00:05:27 INFO phaseshift::::casa Shift phase center 2026-07-18 00:05:27 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:05:27 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:05:23.496522 End time: 2026-07-18 00:05:27.386916 2026-07-18 00:05:27 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:05:27 INFO phaseshift::::casa ########################################## 2026-07-18 00:05:27 INFO tclean::::casa ########################################## 2026-07-18 00:05:27 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:05:27 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, 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 ) 2026-07-18 00:05:27 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:05:27 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:05:27 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:05:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:05:28 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:05:28 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:05:28 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:05:28 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:05:28 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:05:28 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:05:28 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:05:28 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:05:29 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:05:29 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021256 2026-07-18 00:05:29 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:05:29 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:05:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:05:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:05:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:05:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:05:31 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:05:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:05:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:05:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:05:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:05:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:05:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:05:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:05:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:05:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:05:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:05:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:05:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:05:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:05:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:05:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:05:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:05:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:05:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:05:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:05:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:05:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:05:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:05:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:05:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:05:36 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:05:36 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:05:36 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:05:37 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:05:38 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:05:39 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:05:27.429869 End time: 2026-07-18 00:05:39.288332 2026-07-18 00:05:39 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:05:39 INFO tclean::::casa ########################################## 2026-07-18 00:05:39 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:05:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:05:39 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) 2026-07-18 00:05:39 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:05:39 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:05:39 2026****** 2026-07-18 00:05:39 INFO ImageFitter::fit+ 2026-07-18 00:05:39 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:05:39 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:05:39 INFO ImageFitter::fit+ --- region: 2026-07-18 00:05:39 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:05:39 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:05:39 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:05:39 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:05:39 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:05:39 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:05:39 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:05:39 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) 2026-07-18 00:05:39 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:05:39 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:05:39 INFO imstat::::casa ########################################## 2026-07-18 00:05:39 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:05:39 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 ) 2026-07-18 00:05:39 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:05:39 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:05:39 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:05:39 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:05:39 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:05:39 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) 2026-07-18 00:05:39 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:05:39 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:05:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:05:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:05:39 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:05:39 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:05:39 INFO imstat:::: Values --- 2026-07-18 00:05:39 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:05:39 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:05:39 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:05:39 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-07-18 00:05:39 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:05:39 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:05:39 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:05:39 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-07-18 00:05:39 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:05:39 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:05:39 INFO imstat:::: Statistics --- 2026-07-18 00:05:39 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:05:39 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:05:39 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:05:39 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:05:39 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-07-18 00:05:39 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-07-18 00:05:39 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-07-18 00:05:39 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-07-18 00:05:39 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-07-18 00:05:39 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:05:39 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:05:39 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:05:39 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:05:39 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:05:39 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:05:39 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 2026-07-18 00:05:39 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:05:39.340626 End time: 2026-07-18 00:05:39.360213 2026-07-18 00:05:39 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:05:39 INFO imstat::::casa ########################################## 2026-07-18 00:05:39 INFO phaseshift::::casa ########################################## 2026-07-18 00:05:39 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:05:39 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' ) 2026-07-18 00:05:39 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:05:39 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:05:39 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:05:39 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:05:39 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:05:39 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:05:39 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:05:39 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:05:39 INFO MSTransformManager::open Select data 2026-07-18 00:05:39 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:05:42 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 ".". 2026-07-18 00:05:42 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 02:40:24.0001' successfully parsed 2026-07-18 00:05:42 INFO phaseshift::::casa Shift phase center 2026-07-18 00:05:43 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:05:43 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:05:39.373277 End time: 2026-07-18 00:05:43.250127 2026-07-18 00:05:43 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:05:43 INFO phaseshift::::casa ########################################## 2026-07-18 00:05:43 INFO tclean::::casa ########################################## 2026-07-18 00:05:43 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:05:43 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, 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 ) 2026-07-18 00:05:43 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:05:43 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:05:43 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:05:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:05:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:05:43 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:05:43 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:05:43 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:05:43 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:05:43 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:05:43 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:05:43 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:05:45 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:05:45 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021359 2026-07-18 00:05:45 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:05:45 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:05:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:05:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:05:47 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:05:47 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:05:47 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:05:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:05:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:05:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:05:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:05:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:05:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:05:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:05:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:05:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:05:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:05:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:05:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:05:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:05:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:05:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:05:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:05:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:05:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:05:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:05:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:05:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:05:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:05:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:05:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:05:53 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:05:53 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:05:53 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:05:53 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:05:54 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:05:55 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:05:43.280515 End time: 2026-07-18 00:05:54.993594 2026-07-18 00:05:55 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:05:55 INFO tclean::::casa ########################################## 2026-07-18 00:05:55 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:05:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:05:55 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) 2026-07-18 00:05:55 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:05:55 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:05:55 2026****** 2026-07-18 00:05:55 INFO ImageFitter::fit+ 2026-07-18 00:05:55 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:05:55 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:05:55 INFO ImageFitter::fit+ --- region: 2026-07-18 00:05:55 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:05:55 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:05:55 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:05:55 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:05:55 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:05:55 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:05:55 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:05:55 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) 2026-07-18 00:05:55 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:05:55 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:05:55 INFO imstat::::casa ########################################## 2026-07-18 00:05:55 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:05:55 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 ) 2026-07-18 00:05:55 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:05:55 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:05:55 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:05:55 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:05:55 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:05:55 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) 2026-07-18 00:05:55 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:05:55 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:05:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:05:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:05:55 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:05:55 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:05:55 INFO imstat:::: Values --- 2026-07-18 00:05:55 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:05:55 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:05:55 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:05:55 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-07-18 00:05:55 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:05:55 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-07-18 00:05:55 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:05:55 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-07-18 00:05:55 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:05:55 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:05:55 INFO imstat:::: Statistics --- 2026-07-18 00:05:55 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:05:55 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:05:55 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:05:55 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:05:55 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-07-18 00:05:55 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-07-18 00:05:55 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-07-18 00:05:55 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-07-18 00:05:55 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-07-18 00:05:55 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:05:55 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:05:55 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:05:55 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:05:55 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:05:55 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:05:55 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 2026-07-18 00:05:55 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:05:55.049614 End time: 2026-07-18 00:05:55.081276 2026-07-18 00:05:55 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:05:55 INFO imstat::::casa ########################################## 2026-07-18 00:05:55 INFO phaseshift::::casa ########################################## 2026-07-18 00:05:55 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:05:55 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 19:53:49.9980 40.100000528deg' ) 2026-07-18 00:05:55 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:05:55 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:05:55 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:05:55 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:05:55 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:05:55 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:05:55 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:05:55 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:05:55 INFO MSTransformManager::open Select data 2026-07-18 00:05:55 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:05:58 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:05:58 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 40.100000528deg' successfully parsed 2026-07-18 00:05:58 INFO phaseshift::::casa Shift phase center 2026-07-18 00:05:59 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:05:59 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:05:55.095951 End time: 2026-07-18 00:05:58.971223 2026-07-18 00:05:59 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:05:59 INFO phaseshift::::casa ########################################## 2026-07-18 00:05:59 INFO tclean::::casa ########################################## 2026-07-18 00:05:59 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:05:59 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, 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 ) 2026-07-18 00:05:59 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:05:59 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:05:59 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:05:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:05:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:05:59 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:05:59 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:05:59 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:05:59 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:05:59 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:05:59 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:05:59 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:06:00 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:06:00 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021247 2026-07-18 00:06:00 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:06:00 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:06:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:06:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:06:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:06:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:06:02 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:06:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:06:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:06:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:06:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:06:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:06:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:06:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:06:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:06:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:06:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:06:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:06:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:06:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:06:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:06:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:06:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:06:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:06:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:06:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:06:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:06:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:06:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:06:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:06:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:06:09 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:06:09 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:06:09 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:06:10 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:06:10 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:06:12 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:05:59.001992 End time: 2026-07-18 00:06:11.645401 2026-07-18 00:06:12 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:06:12 INFO tclean::::casa ########################################## 2026-07-18 00:06:12 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:06:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:06:12 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) 2026-07-18 00:06:12 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:06:12 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:06:12 2026****** 2026-07-18 00:06:12 INFO ImageFitter::fit+ 2026-07-18 00:06:12 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:06:12 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:06:12 INFO ImageFitter::fit+ --- region: 2026-07-18 00:06:12 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:06:12 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:06:12 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:06:12 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:06:12 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:06:12 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:06:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:06:12 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) 2026-07-18 00:06:12 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:06:12 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:06:12 INFO imstat::::casa ########################################## 2026-07-18 00:06:12 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:06:12 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 ) 2026-07-18 00:06:12 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:06:12 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:06:12 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:06:12 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:06:12 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:06:12 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) 2026-07-18 00:06:12 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:06:12 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:06:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:06:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:06:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:06:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:06:12 INFO imstat:::: Values --- 2026-07-18 00:06:12 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:06:12 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:06:12 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:06:12 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-07-18 00:06:12 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:06:12 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:06:12 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:06:12 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-07-18 00:06:12 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:06:12 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:06:12 INFO imstat:::: Statistics --- 2026-07-18 00:06:12 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:06:12 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:06:12 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:06:12 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:06:12 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-07-18 00:06:12 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-07-18 00:06:12 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-07-18 00:06:12 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-07-18 00:06:12 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-07-18 00:06:12 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:06:12 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:06:12 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:06:12 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:06:12 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:06:12 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:06:12 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 2026-07-18 00:06:12 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:06:11.700854 End time: 2026-07-18 00:06:11.722904 2026-07-18 00:06:12 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:06:12 INFO imstat::::casa ########################################## 2026-07-18 00:06:12 INFO phaseshift::::casa ########################################## 2026-07-18 00:06:12 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:06:12 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 0.699877039rad' ) 2026-07-18 00:06:12 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:06:12 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:06:12 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:06:12 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:06:12 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:06:12 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:06:12 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:06:12 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:06:12 INFO MSTransformManager::open Select data 2026-07-18 00:06:12 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:06:14 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:06:14 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 0.699877039rad' successfully parsed 2026-07-18 00:06:14 INFO phaseshift::::casa Shift phase center 2026-07-18 00:06:15 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:06:15 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:06:11.736215 End time: 2026-07-18 00:06:15.095880 2026-07-18 00:06:15 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:06:15 INFO phaseshift::::casa ########################################## 2026-07-18 00:06:15 INFO tclean::::casa ########################################## 2026-07-18 00:06:15 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:06:15 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, 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 ) 2026-07-18 00:06:15 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:06:15 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:06:15 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:06:15 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:06:15 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:06:15 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:06:15 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:06:15 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:06:15 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:06:15 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:06:15 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:06:15 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:06:16 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:06:16 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020906 2026-07-18 00:06:16 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:06:16 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:06:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:06:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:06:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:06:18 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:06:18 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:06:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:06:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:06:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:06:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:06:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:06:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:06:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:06:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:06:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:06:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:06:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:06:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:06:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:06:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:06:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:06:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:06:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:06:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:06:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:06:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:06:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:06:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:06:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:06:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:06:25 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:06:25 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:06:25 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:06:26 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:06:26 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:06:27 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:06:15.125929 End time: 2026-07-18 00:06:27.299642 2026-07-18 00:06:27 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:06:27 INFO tclean::::casa ########################################## 2026-07-18 00:06:27 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:06:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:06:27 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) 2026-07-18 00:06:27 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:06:27 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:06:27 2026****** 2026-07-18 00:06:27 INFO ImageFitter::fit+ 2026-07-18 00:06:27 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:06:27 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:06:27 INFO ImageFitter::fit+ --- region: 2026-07-18 00:06:27 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:06:27 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:06:27 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:06:27 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:06:27 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:06:27 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:06:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:06:27 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) 2026-07-18 00:06:27 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:06:27 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:06:27 INFO imstat::::casa ########################################## 2026-07-18 00:06:27 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:06:27 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 ) 2026-07-18 00:06:27 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:06:27 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:06:27 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:06:27 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:06:27 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:06:27 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) 2026-07-18 00:06:27 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:06:27 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:06:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:06:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:06:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:06:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:06:27 INFO imstat:::: Values --- 2026-07-18 00:06:27 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:06:27 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:06:27 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:06:27 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-07-18 00:06:27 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:06:27 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:06:27 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:06:27 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-07-18 00:06:27 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:06:27 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:06:27 INFO imstat:::: Statistics --- 2026-07-18 00:06:27 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:06:27 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:06:27 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:06:27 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:06:27 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-07-18 00:06:27 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-07-18 00:06:27 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-07-18 00:06:27 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-07-18 00:06:27 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-07-18 00:06:27 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:06:27 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:06:27 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:06:27 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:06:27 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:06:27 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:06:27 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 2026-07-18 00:06:27 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:06:27.368757 End time: 2026-07-18 00:06:27.388720 2026-07-18 00:06:27 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:06:27 INFO imstat::::casa ########################################## 2026-07-18 00:06:27 INFO phaseshift::::casa ########################################## 2026-07-18 00:06:27 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:06:27 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 40d06m0.0019' ) 2026-07-18 00:06:27 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:06:27 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:06:27 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:06:27 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:06:27 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:06:27 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:06:27 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:06:27 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:06:27 INFO MSTransformManager::open Select data 2026-07-18 00:06:27 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:06:30 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:06:30 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 40d06m0.0019' successfully parsed 2026-07-18 00:06:30 INFO phaseshift::::casa Shift phase center 2026-07-18 00:06:31 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:06:31 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:06:27.401928 End time: 2026-07-18 00:06:31.089281 2026-07-18 00:06:31 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:06:31 INFO phaseshift::::casa ########################################## 2026-07-18 00:06:31 INFO tclean::::casa ########################################## 2026-07-18 00:06:31 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:06:31 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, 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 ) 2026-07-18 00:06:31 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:06:31 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:06:31 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:06:31 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:06:31 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:06:31 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:06:31 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:06:31 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:06:31 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:06:31 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:06:31 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:06:31 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:06:32 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:06:32 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022211 2026-07-18 00:06:32 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:06:32 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:06:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:06:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:06:34 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:06:34 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:06:34 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:06:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:06:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:06:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:06:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:06:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:06:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:06:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:06:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:06:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:06:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:06:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:06:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:06:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:06:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:06:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:06:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:06:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:06:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:06:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:06:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:06:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:06:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:06:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:06:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:06:40 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:06:40 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:06:40 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:06:41 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:06:42 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:06:43 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:06:31.118146 End time: 2026-07-18 00:06:43.093288 2026-07-18 00:06:43 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:06:43 INFO tclean::::casa ########################################## 2026-07-18 00:06:43 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:06:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:06:43 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) 2026-07-18 00:06:43 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:06:43 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:06:43 2026****** 2026-07-18 00:06:43 INFO ImageFitter::fit+ 2026-07-18 00:06:43 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:06:43 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:06:43 INFO ImageFitter::fit+ --- region: 2026-07-18 00:06:43 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:06:43 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:06:43 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:06:43 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:06:43 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:06:43 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:06:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:06:43 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) 2026-07-18 00:06:43 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:06:43 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:06:43 INFO imstat::::casa ########################################## 2026-07-18 00:06:43 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:06:43 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 ) 2026-07-18 00:06:43 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:06:43 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:06:43 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:06:43 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:06:43 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:06:43 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) 2026-07-18 00:06:43 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:06:43 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:06:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:06:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:06:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:06:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:06:43 INFO imstat:::: Values --- 2026-07-18 00:06:43 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:06:43 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:06:43 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:06:43 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-07-18 00:06:43 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:06:43 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:06:43 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:06:43 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-07-18 00:06:43 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:06:43 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:06:43 INFO imstat:::: Statistics --- 2026-07-18 00:06:43 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:06:43 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:06:43 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:06:43 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:06:43 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-07-18 00:06:43 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-07-18 00:06:43 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-07-18 00:06:43 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-07-18 00:06:43 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-07-18 00:06:43 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:06:43 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:06:43 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:06:43 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:06:43 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:06:43 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:06:43 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 2026-07-18 00:06:43 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:06:43.148275 End time: 2026-07-18 00:06:43.168917 2026-07-18 00:06:43 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:06:43 INFO imstat::::casa ########################################## 2026-07-18 00:06:43 INFO phaseshift::::casa ########################################## 2026-07-18 00:06:43 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:06:43 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 02:40:24.0001' ) 2026-07-18 00:06:43 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:06:43 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:06:43 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:06:43 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:06:43 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:06:43 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:06:43 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:06:43 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:06:43 INFO MSTransformManager::open Select data 2026-07-18 00:06:43 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:06:47 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 ".". 2026-07-18 00:06:47 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 02:40:24.0001' successfully parsed 2026-07-18 00:06:47 INFO phaseshift::::casa Shift phase center 2026-07-18 00:06:47 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:06:47 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:06:43.181764 End time: 2026-07-18 00:06:47.397514 2026-07-18 00:06:47 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:06:47 INFO phaseshift::::casa ########################################## 2026-07-18 00:06:47 INFO tclean::::casa ########################################## 2026-07-18 00:06:47 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:06:47 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, 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 ) 2026-07-18 00:06:47 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:06:47 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:06:47 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:06:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:06:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:06:48 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:06:48 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:06:48 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:06:48 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:06:48 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:06:48 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:06:48 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:06:49 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:06:49 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020627 2026-07-18 00:06:49 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:06:49 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:06:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:06:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:06:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:06:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:06:51 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:06:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:06:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:06:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:06:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:06:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:06:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:06:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:06:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:06:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:06:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:06:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:06:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:06:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:06:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:06:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:06:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:06:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:06:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:06:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:06:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:06:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:06:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:06:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:06:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:06:57 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:06:57 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:06:57 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:06:58 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:06:58 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:06:59 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:06:47.428620 End time: 2026-07-18 00:06:59.393776 2026-07-18 00:06:59 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:06:59 INFO tclean::::casa ########################################## 2026-07-18 00:06:59 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:06:59 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:06:59 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) 2026-07-18 00:06:59 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:06:59 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:06:59 2026****** 2026-07-18 00:06:59 INFO ImageFitter::fit+ 2026-07-18 00:06:59 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:06:59 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:06:59 INFO ImageFitter::fit+ --- region: 2026-07-18 00:06:59 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:06:59 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:06:59 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:06:59 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:06:59 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:06:59 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:06:59 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:06:59 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) 2026-07-18 00:06:59 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:06:59 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:06:59 INFO imstat::::casa ########################################## 2026-07-18 00:06:59 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:06:59 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 ) 2026-07-18 00:06:59 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:06:59 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:06:59 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:06:59 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:06:59 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:06:59 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) 2026-07-18 00:06:59 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:06:59 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:06:59 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:06:59 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:06:59 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:06:59 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:06:59 INFO imstat:::: Values --- 2026-07-18 00:06:59 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:06:59 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:06:59 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:06:59 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-07-18 00:06:59 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:06:59 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-07-18 00:06:59 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:06:59 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-07-18 00:06:59 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:06:59 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:06:59 INFO imstat:::: Statistics --- 2026-07-18 00:06:59 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:06:59 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:06:59 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:06:59 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:06:59 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-07-18 00:06:59 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-07-18 00:06:59 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-07-18 00:06:59 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-07-18 00:06:59 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-07-18 00:06:59 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:06:59 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:06:59 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:06:59 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:06:59 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:06:59 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:06:59 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 2026-07-18 00:06:59 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:06:59.446342 End time: 2026-07-18 00:06:59.467017 2026-07-18 00:06:59 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:06:59 INFO imstat::::casa ########################################## 2026-07-18 00:06:59 INFO phaseshift::::casa ########################################## 2026-07-18 00:06:59 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:06:59 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' ) 2026-07-18 00:06:59 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:06:59 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:06:59 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:06:59 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:06:59 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:07:00 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:07:00 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:07:00 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:07:00 INFO MSTransformManager::open Select data 2026-07-18 00:07:00 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:07:02 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:07:02 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 40.100000528deg' successfully parsed 2026-07-18 00:07:02 INFO phaseshift::::casa Shift phase center 2026-07-18 00:07:03 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:07:03 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:06:59.480568 End time: 2026-07-18 00:07:03.008491 2026-07-18 00:07:03 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:07:03 INFO phaseshift::::casa ########################################## 2026-07-18 00:07:03 INFO tclean::::casa ########################################## 2026-07-18 00:07:03 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:07:03 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, 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 ) 2026-07-18 00:07:03 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:07:03 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:07:03 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:07:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:07:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:07:03 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:07:03 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:07:03 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:07:03 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:07:03 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:07:03 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:07:03 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:07:04 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:07:04 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022556 2026-07-18 00:07:04 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:07:04 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:07:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:07:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:07:06 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:07:06 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:07:06 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:07:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:07:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:07:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:07:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:07:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:07:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:07:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:07:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:07:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:07:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:07:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:07:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:07:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:07:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:07:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:07:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:07:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:07:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:07:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:07:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:07:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:07:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:07:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:07:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:07:13 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:07:13 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:07:13 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:07:13 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:07:14 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:07:15 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:07:03.039230 End time: 2026-07-18 00:07:15.077280 2026-07-18 00:07:15 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:07:15 INFO tclean::::casa ########################################## 2026-07-18 00:07:15 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:07:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:07:15 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) 2026-07-18 00:07:15 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:07:15 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:07:15 2026****** 2026-07-18 00:07:15 INFO ImageFitter::fit+ 2026-07-18 00:07:15 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:07:15 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:07:15 INFO ImageFitter::fit+ --- region: 2026-07-18 00:07:15 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:07:15 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:07:15 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:07:15 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:07:15 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:07:15 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:07:15 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:07:15 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) 2026-07-18 00:07:15 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:07:15 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:07:15 INFO imstat::::casa ########################################## 2026-07-18 00:07:15 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:07:15 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 ) 2026-07-18 00:07:15 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:07:15 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:07:15 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:07:15 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:07:15 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:07:15 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) 2026-07-18 00:07:15 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:07:15 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:07:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:07:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:07:15 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:07:15 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:07:15 INFO imstat:::: Values --- 2026-07-18 00:07:15 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:07:15 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:07:15 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:07:15 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-07-18 00:07:15 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:07:15 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:07:15 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:07:15 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-07-18 00:07:15 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:07:15 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:07:15 INFO imstat:::: Statistics --- 2026-07-18 00:07:15 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:07:15 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:07:15 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:07:15 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:07:15 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-07-18 00:07:15 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-07-18 00:07:15 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-07-18 00:07:15 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-07-18 00:07:15 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-07-18 00:07:15 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:07:15 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:07:15 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:07:15 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:07:15 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:07:15 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:07:15 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 2026-07-18 00:07:15 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:07:15.129822 End time: 2026-07-18 00:07:15.149432 2026-07-18 00:07:15 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:07:15 INFO imstat::::casa ########################################## 2026-07-18 00:07:15 INFO phaseshift::::casa ########################################## 2026-07-18 00:07:15 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:07:15 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' ) 2026-07-18 00:07:15 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:07:15 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:07:15 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:07:15 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:07:15 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:07:15 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:07:15 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:07:15 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:07:15 INFO MSTransformManager::open Select data 2026-07-18 00:07:15 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:07:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:07:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 0.699877039rad' successfully parsed 2026-07-18 00:07:18 INFO phaseshift::::casa Shift phase center 2026-07-18 00:07:19 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:07:19 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:07:15.162813 End time: 2026-07-18 00:07:19.374137 2026-07-18 00:07:19 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:07:19 INFO phaseshift::::casa ########################################## 2026-07-18 00:07:19 INFO tclean::::casa ########################################## 2026-07-18 00:07:19 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:07:19 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, 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 ) 2026-07-18 00:07:19 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:07:19 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:07:19 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:07:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:07:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:07:20 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:07:20 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:07:20 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:07:20 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:07:20 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:07:20 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:07:20 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:07:21 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:07:21 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022714 2026-07-18 00:07:21 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:07:21 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:07:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:07:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:07:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:07:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:07:23 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:07:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:07:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:07:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:07:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:07:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:07:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:07:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:07:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:07:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:07:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:07:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:07:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:07:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:07:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:07:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:07:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:07:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:07:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:07:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:07:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:07:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:07:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:07:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:07:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:07:28 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:07:28 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:07:28 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:07:29 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:07:29 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:07:30 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:07:19.403900 End time: 2026-07-18 00:07:30.427398 2026-07-18 00:07:30 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:07:30 INFO tclean::::casa ########################################## 2026-07-18 00:07:30 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:07:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:07:30 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) 2026-07-18 00:07:30 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:07:30 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:07:30 2026****** 2026-07-18 00:07:30 INFO ImageFitter::fit+ 2026-07-18 00:07:30 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:07:30 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:07:30 INFO ImageFitter::fit+ --- region: 2026-07-18 00:07:30 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:07:30 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:07:30 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:07:30 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:07:30 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:07:30 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:07:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:07:30 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) 2026-07-18 00:07:30 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:07:30 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:07:30 INFO imstat::::casa ########################################## 2026-07-18 00:07:30 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:07:30 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 ) 2026-07-18 00:07:30 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:07:30 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:07:30 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:07:30 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:07:30 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:07:30 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) 2026-07-18 00:07:30 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:07:30 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:07:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:07:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:07:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:07:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:07:31 INFO imstat:::: Values --- 2026-07-18 00:07:31 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:07:31 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:07:31 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:07:31 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-07-18 00:07:31 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:07:31 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:07:31 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:07:31 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-07-18 00:07:31 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:07:31 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:07:31 INFO imstat:::: Statistics --- 2026-07-18 00:07:31 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:07:31 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:07:31 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:07:31 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:07:31 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-07-18 00:07:31 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-07-18 00:07:31 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-07-18 00:07:31 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-07-18 00:07:31 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-07-18 00:07:31 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:07:31 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:07:31 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:07:31 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:07:31 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:07:31 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:07:31 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 2026-07-18 00:07:31 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:07:30.483670 End time: 2026-07-18 00:07:30.505051 2026-07-18 00:07:31 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:07:31 INFO imstat::::casa ########################################## 2026-07-18 00:07:31 INFO phaseshift::::casa ########################################## 2026-07-18 00:07:31 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:07:31 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' ) 2026-07-18 00:07:31 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:07:31 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:07:31 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:07:31 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:07:31 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:07:31 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:07:31 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:07:31 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:07:31 INFO MSTransformManager::open Select data 2026-07-18 00:07:31 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:07:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:07:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 40d06m0.0019' successfully parsed 2026-07-18 00:07:33 INFO phaseshift::::casa Shift phase center 2026-07-18 00:07:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:07:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:07:30.520098 End time: 2026-07-18 00:07:34.180104 2026-07-18 00:07:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:07:34 INFO phaseshift::::casa ########################################## 2026-07-18 00:07:34 INFO tclean::::casa ########################################## 2026-07-18 00:07:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:07:34 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, 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 ) 2026-07-18 00:07:34 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:07:34 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:07:34 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:07:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:07:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:07:34 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:07:34 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:07:34 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:07:34 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:07:34 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:07:34 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:07:34 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:07:35 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:07:36 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021942 2026-07-18 00:07:36 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:07:36 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:07:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:07:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:07:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:07:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:07:37 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:07:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:07:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:07:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:07:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:07:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:07:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:07:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:07:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:07:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:07:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:07:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:07:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:07:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:07:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:07:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:07:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:07:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:07:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:07:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:07:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:07:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:07:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:07:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:07:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:07:43 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:07:43 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:07:43 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:07:44 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:07:44 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:07:45 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:07:34.208995 End time: 2026-07-18 00:07:45.217176 2026-07-18 00:07:45 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:07:45 INFO tclean::::casa ########################################## 2026-07-18 00:07:45 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:07:45 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:07:45 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) 2026-07-18 00:07:45 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:07:45 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:07:45 2026****** 2026-07-18 00:07:45 INFO ImageFitter::fit+ 2026-07-18 00:07:45 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:07:45 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:07:45 INFO ImageFitter::fit+ --- region: 2026-07-18 00:07:45 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:07:45 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:07:45 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:07:45 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:07:45 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:07:45 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:07:45 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:07:45 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) 2026-07-18 00:07:45 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116878 Jy 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126494 Jy 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:07:45 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:07:45 INFO imstat::::casa ########################################## 2026-07-18 00:07:45 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:07:45 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 ) 2026-07-18 00:07:45 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:07:45 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:07:45 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:07:45 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:07:45 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:07:45 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) 2026-07-18 00:07:45 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:07:45 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:07:45 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:07:45 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:07:45 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:07:45 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:07:45 INFO imstat:::: Values --- 2026-07-18 00:07:45 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:07:45 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:07:45 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:07:45 INFO imstat:::: -- minimum value [min]: -7.77984e-05 Jy/beam 2026-07-18 00:07:45 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:07:45 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:07:45 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:07:45 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-07-18 00:07:45 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:07:45 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:07:45 INFO imstat:::: Statistics --- 2026-07-18 00:07:45 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:07:45 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:07:45 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:07:45 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:07:45 INFO imstat:::: -- Median of the pixel values [median]: -1.86704e-05 Jy/beam 2026-07-18 00:07:45 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7365e-05 Jy/beam 2026-07-18 00:07:45 INFO imstat:::: -- IQR [quartile]: 3.56348e-05 Jy/beam 2026-07-18 00:07:45 INFO imstat:::: -- First quartile [q1]: -3.45131e-05 Jy/beam 2026-07-18 00:07:45 INFO imstat:::: -- Third quartile [q3]: 1.12172e-06 Jy/beam 2026-07-18 00:07:45 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:07:45 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:07:45 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:07:45 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:07:45 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:07:45 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:07:45 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 2026-07-18 00:07:45 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:07:45.275909 End time: 2026-07-18 00:07:45.297233 2026-07-18 00:07:45 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:07:45 INFO imstat::::casa ########################################## 2026-07-18 00:07:45 INFO phaseshift::::casa ########################################## 2026-07-18 00:07:45 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:07:45 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 02:40:24.0001' ) 2026-07-18 00:07:45 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:07:45 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:07:45 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:07:45 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:07:45 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:07:45 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:07:45 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:07:45 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:07:45 INFO MSTransformManager::open Select data 2026-07-18 00:07:45 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:07:48 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-07-18 00:07:48 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 02:40:24.0001' successfully parsed 2026-07-18 00:07:48 INFO phaseshift::::casa Shift phase center 2026-07-18 00:07:49 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:07:49 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:07:45.310825 End time: 2026-07-18 00:07:49.297028 2026-07-18 00:07:49 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:07:49 INFO phaseshift::::casa ########################################## 2026-07-18 00:07:49 INFO tclean::::casa ########################################## 2026-07-18 00:07:49 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:07:49 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, 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 ) 2026-07-18 00:07:49 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:07:49 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:07:49 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:07:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:07:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:07:49 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:07:49 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:07:49 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:07:49 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:07:49 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:07:49 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:07:49 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:07:51 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:07:51 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022148 2026-07-18 00:07:51 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:07:51 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:07:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:07:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:07:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:07:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:07:53 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:07:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:07:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:07:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:07:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:07:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:07:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:07:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:07:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:07:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:07:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:07:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:07:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:07:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:07:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:07:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:07:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:07:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:07:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:07:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:07:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:07:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:07:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:07:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:08:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:08:00 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:08:00 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:08:00 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:08:00 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:08:01 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:08:02 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:07:49.327660 End time: 2026-07-18 00:08:02.047445 2026-07-18 00:08:02 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:08:02 INFO tclean::::casa ########################################## 2026-07-18 00:08:02 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:08:02 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:08:02 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) 2026-07-18 00:08:02 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:08:02 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:08:02 2026****** 2026-07-18 00:08:02 INFO ImageFitter::fit+ 2026-07-18 00:08:02 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:08:02 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:08:02 INFO ImageFitter::fit+ --- region: 2026-07-18 00:08:02 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:08:02 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:08:02 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:08:02 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:08:02 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:08:02 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:08:02 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:08:02 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) 2026-07-18 00:08:02 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116894 Jy 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126508 Jy 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:08:02 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:08:02 INFO imstat::::casa ########################################## 2026-07-18 00:08:02 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:08:02 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 ) 2026-07-18 00:08:02 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:08:02 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:08:02 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:08:02 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:08:02 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:08:02 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) 2026-07-18 00:08:02 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:08:02 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:08:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:08:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:08:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:08:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:08:02 INFO imstat:::: Values --- 2026-07-18 00:08:02 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:08:02 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:08:02 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:08:02 INFO imstat:::: -- minimum value [min]: -7.78076e-05 Jy/beam 2026-07-18 00:08:02 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:08:02 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-07-18 00:08:02 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:08:02 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-07-18 00:08:02 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:08:02 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:08:02 INFO imstat:::: Statistics --- 2026-07-18 00:08:02 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:08:02 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:08:02 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:08:02 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:08:02 INFO imstat:::: -- Median of the pixel values [median]: -1.86848e-05 Jy/beam 2026-07-18 00:08:02 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73951e-05 Jy/beam 2026-07-18 00:08:02 INFO imstat:::: -- IQR [quartile]: 3.56676e-05 Jy/beam 2026-07-18 00:08:02 INFO imstat:::: -- First quartile [q1]: -3.45186e-05 Jy/beam 2026-07-18 00:08:02 INFO imstat:::: -- Third quartile [q3]: 1.14894e-06 Jy/beam 2026-07-18 00:08:02 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:08:02 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:08:02 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:08:02 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:08:02 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:08:02 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:08:02 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 2026-07-18 00:08:02 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:08:02.116715 End time: 2026-07-18 00:08:02.140313 2026-07-18 00:08:02 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:08:02 INFO imstat::::casa ########################################## 2026-07-18 00:08:02 INFO phaseshift::::casa ########################################## 2026-07-18 00:08:02 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:08:02 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 40.100000528deg' ) 2026-07-18 00:08:02 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:08:02 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:08:02 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:08:02 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:08:02 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:08:02 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:08:02 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:08:02 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:08:02 INFO MSTransformManager::open Select data 2026-07-18 00:08:02 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:08:05 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:08:05 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 40.100000528deg' successfully parsed 2026-07-18 00:08:05 INFO phaseshift::::casa Shift phase center 2026-07-18 00:08:06 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:08:06 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:08:02.153984 End time: 2026-07-18 00:08:05.701160 2026-07-18 00:08:06 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:08:06 INFO phaseshift::::casa ########################################## 2026-07-18 00:08:06 INFO tclean::::casa ########################################## 2026-07-18 00:08:06 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:08:06 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, 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 ) 2026-07-18 00:08:06 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:08:06 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:08:06 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:08:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:08:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:08:06 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:08:06 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:08:06 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:08:06 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:08:06 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:08:06 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:08:06 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:08:07 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:08:07 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02037 2026-07-18 00:08:07 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:08:07 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:08:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:08:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:08:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:08:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:08:09 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:08:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:08:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:08:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:08:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:08:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:08:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:08:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:08:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:08:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:08:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:08:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:08:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:08:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:08:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:08:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:08:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:08:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:08:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:08:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:08:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:08:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:08:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:08:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:08:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:08:16 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:08:16 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:08:16 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:08:17 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:08:17 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:08:18 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:08:05.732275 End time: 2026-07-18 00:08:18.252383 2026-07-18 00:08:18 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:08:18 INFO tclean::::casa ########################################## 2026-07-18 00:08:18 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:08:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:08:18 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) 2026-07-18 00:08:18 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:08:18 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:08:18 2026****** 2026-07-18 00:08:18 INFO ImageFitter::fit+ 2026-07-18 00:08:18 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:08:18 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:08:18 INFO ImageFitter::fit+ --- region: 2026-07-18 00:08:18 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:08:18 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:08:18 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:08:18 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:08:18 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:08:18 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:08:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:08:18 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) 2026-07-18 00:08:18 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116882 Jy 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:08:18 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:08:18 INFO imstat::::casa ########################################## 2026-07-18 00:08:18 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:08:18 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 ) 2026-07-18 00:08:18 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:08:18 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:08:18 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:08:18 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:08:18 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:08:18 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) 2026-07-18 00:08:18 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:08:18 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:08:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:08:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:08:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:08:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:08:18 INFO imstat:::: Values --- 2026-07-18 00:08:18 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:08:18 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:08:18 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:08:18 INFO imstat:::: -- minimum value [min]: -7.77982e-05 Jy/beam 2026-07-18 00:08:18 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:08:18 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:08:18 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:08:18 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-07-18 00:08:18 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:08:18 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:08:18 INFO imstat:::: Statistics --- 2026-07-18 00:08:18 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:08:18 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:08:18 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:08:18 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:08:18 INFO imstat:::: -- Median of the pixel values [median]: -1.86711e-05 Jy/beam 2026-07-18 00:08:18 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73646e-05 Jy/beam 2026-07-18 00:08:18 INFO imstat:::: -- IQR [quartile]: 3.56367e-05 Jy/beam 2026-07-18 00:08:18 INFO imstat:::: -- First quartile [q1]: -3.45138e-05 Jy/beam 2026-07-18 00:08:18 INFO imstat:::: -- Third quartile [q3]: 1.12291e-06 Jy/beam 2026-07-18 00:08:18 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:08:18 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:08:18 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:08:18 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:08:18 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:08:18 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:08:18 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 2026-07-18 00:08:18 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:08:18.306121 End time: 2026-07-18 00:08:18.326332 2026-07-18 00:08:18 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:08:18 INFO imstat::::casa ########################################## 2026-07-18 00:08:18 INFO phaseshift::::casa ########################################## 2026-07-18 00:08:18 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:08:18 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 0.699877039rad' ) 2026-07-18 00:08:18 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:08:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:08:18 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:08:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:08:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:08:18 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:08:18 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:08:18 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:08:18 INFO MSTransformManager::open Select data 2026-07-18 00:08:18 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:08:21 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:08:21 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 0.699877039rad' successfully parsed 2026-07-18 00:08:21 INFO phaseshift::::casa Shift phase center 2026-07-18 00:08:22 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:08:22 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:08:18.339759 End time: 2026-07-18 00:08:22.107526 2026-07-18 00:08:22 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:08:22 INFO phaseshift::::casa ########################################## 2026-07-18 00:08:22 INFO tclean::::casa ########################################## 2026-07-18 00:08:22 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:08:22 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, 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 ) 2026-07-18 00:08:22 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:08:22 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:08:22 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:08:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:08:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:08:22 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:08:22 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:08:22 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:08:22 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:08:22 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:08:22 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:08:22 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:08:23 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:08:23 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021406 2026-07-18 00:08:23 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:08:24 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:08:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:08:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:08:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:08:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:08:25 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:08:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:08:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:08:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:08:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:08:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:08:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:08:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:08:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:08:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:08:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:08:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:08:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:08:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374443277716637, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:08:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:08:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:08:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:08:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:08:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:08:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852561634033918, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:08:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:08:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:08:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:08:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:08:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:08:32 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:08:32 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:08:32 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:08:33 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:08:33 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:08:34 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:08:22.137831 End time: 2026-07-18 00:08:34.315933 2026-07-18 00:08:34 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:08:34 INFO tclean::::casa ########################################## 2026-07-18 00:08:34 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:08:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:08:34 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) 2026-07-18 00:08:34 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:08:34 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:08:34 2026****** 2026-07-18 00:08:34 INFO ImageFitter::fit+ 2026-07-18 00:08:34 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:08:34 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:08:34 INFO ImageFitter::fit+ --- region: 2026-07-18 00:08:34 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:08:34 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:08:34 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:08:34 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:08:34 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:08:34 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:08:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:08:34 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) 2026-07-18 00:08:34 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:08:34 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:08:34 INFO imstat::::casa ########################################## 2026-07-18 00:08:34 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:08:34 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 ) 2026-07-18 00:08:34 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:08:34 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:08:34 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:08:34 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:08:34 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:08:34 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) 2026-07-18 00:08:34 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:08:34 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:08:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:08:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:08:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:08:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:08:34 INFO imstat:::: Values --- 2026-07-18 00:08:34 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:08:34 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:08:34 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:08:34 INFO imstat:::: -- minimum value [min]: -7.77898e-05 Jy/beam 2026-07-18 00:08:34 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:08:34 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:08:34 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:08:34 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-07-18 00:08:34 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:08:34 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:08:34 INFO imstat:::: Statistics --- 2026-07-18 00:08:34 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:08:34 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:08:34 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:08:34 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:08:34 INFO imstat:::: -- Median of the pixel values [median]: -1.86769e-05 Jy/beam 2026-07-18 00:08:34 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73662e-05 Jy/beam 2026-07-18 00:08:34 INFO imstat:::: -- IQR [quartile]: 3.5634e-05 Jy/beam 2026-07-18 00:08:34 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-07-18 00:08:34 INFO imstat:::: -- Third quartile [q3]: 1.1187e-06 Jy/beam 2026-07-18 00:08:34 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:08:34 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:08:34 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:08:34 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:08:34 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:08:34 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:08:34 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 2026-07-18 00:08:34 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:08:34.372192 End time: 2026-07-18 00:08:34.392769 2026-07-18 00:08:34 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:08:34 INFO imstat::::casa ########################################## 2026-07-18 00:08:34 INFO phaseshift::::casa ########################################## 2026-07-18 00:08:34 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:08:34 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 +006d21m09.7433' ) 2026-07-18 00:08:34 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:08:34 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:08:34 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:08:34 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:08:34 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:08:34 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:08:34 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:08:34 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:08:34 INFO MSTransformManager::open Select data 2026-07-18 00:08:34 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:08:38 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:08:38 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 +006d21m09.7433' successfully parsed 2026-07-18 00:08:38 INFO phaseshift::::casa Shift phase center 2026-07-18 00:08:39 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:08:39 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:08:34.406502 End time: 2026-07-18 00:08:39.010356 2026-07-18 00:08:39 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:08:39 INFO phaseshift::::casa ########################################## 2026-07-18 00:08:39 INFO tclean::::casa ########################################## 2026-07-18 00:08:39 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:08:39 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, 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 ) 2026-07-18 00:08:39 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:08:39 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:08:39 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:08:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:08:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:08:39 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:08:39 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:08:39 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:08:39 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:08:39 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:08:39 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:08:39 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:08:40 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:08:41 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021369 2026-07-18 00:08:41 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:08:41 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:08:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:08:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:08:43 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:08:43 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:08:43 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:08:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:08:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:08:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:08:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:08:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:08:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:08:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:08:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:08:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:08:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:08:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:08:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:08:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:08:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:08:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:08:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:08:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:08:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:08:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:08:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:08:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:08:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:08:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:08:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:08:49 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:08:49 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:08:49 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:08:50 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:08:50 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:08:51 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:08:39.039640 End time: 2026-07-18 00:08:51.420058 2026-07-18 00:08:51 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:08:51 INFO tclean::::casa ########################################## 2026-07-18 00:08:51 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:08:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:08:51 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) 2026-07-18 00:08:51 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:08:51 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:08:51 2026****** 2026-07-18 00:08:51 INFO ImageFitter::fit+ 2026-07-18 00:08:51 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:08:51 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:08:51 INFO ImageFitter::fit+ --- region: 2026-07-18 00:08:51 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:08:51 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:08:51 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:08:51 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:08:51 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:08:51 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:08:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:08:51 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) 2026-07-18 00:08:51 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:08:51 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:08:51 INFO imstat::::casa ########################################## 2026-07-18 00:08:51 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:08:51 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 ) 2026-07-18 00:08:51 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:08:51 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:08:51 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:08:51 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:08:51 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:08:51 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) 2026-07-18 00:08:51 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:08:51 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:08:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:08:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:08:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:08:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:08:51 INFO imstat:::: Values --- 2026-07-18 00:08:51 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:08:51 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:08:51 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:08:51 INFO imstat:::: -- minimum value [min]: -7.77795e-05 Jy/beam 2026-07-18 00:08:51 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:08:51 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:08:51 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:08:51 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:08:51 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:08:51 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:08:51 INFO imstat:::: Statistics --- 2026-07-18 00:08:51 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:08:51 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:08:51 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:08:51 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:08:51 INFO imstat:::: -- Median of the pixel values [median]: -1.86702e-05 Jy/beam 2026-07-18 00:08:51 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73612e-05 Jy/beam 2026-07-18 00:08:51 INFO imstat:::: -- IQR [quartile]: 3.56029e-05 Jy/beam 2026-07-18 00:08:51 INFO imstat:::: -- First quartile [q1]: -3.45082e-05 Jy/beam 2026-07-18 00:08:51 INFO imstat:::: -- Third quartile [q3]: 1.09472e-06 Jy/beam 2026-07-18 00:08:52 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:08:52 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:08:52 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:08:52 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:08:52 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:08:52 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:08:52 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 2026-07-18 00:08:52 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:08:51.479538 End time: 2026-07-18 00:08:51.502790 2026-07-18 00:08:52 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:08:52 INFO imstat::::casa ########################################## 2026-07-18 00:08:52 INFO phaseshift::::casa ########################################## 2026-07-18 00:08:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:08:52 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 00:25:24.6496' ) 2026-07-18 00:08:52 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:08:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:08:52 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:08:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:08:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:08:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:08:52 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:08:52 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:08:52 INFO MSTransformManager::open Select data 2026-07-18 00:08:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:08:54 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 ".". 2026-07-18 00:08:54 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 00:25:24.6496' successfully parsed 2026-07-18 00:08:54 INFO phaseshift::::casa Shift phase center 2026-07-18 00:08:55 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:08:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:08:51.516779 End time: 2026-07-18 00:08:55.186289 2026-07-18 00:08:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:08:55 INFO phaseshift::::casa ########################################## 2026-07-18 00:08:55 INFO tclean::::casa ########################################## 2026-07-18 00:08:55 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:08:55 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, 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 ) 2026-07-18 00:08:55 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:08:55 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:08:55 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:08:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:08:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:08:55 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:08:55 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:08:55 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:08:55 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:08:55 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:08:55 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:08:55 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:08:57 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:08:57 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021247 2026-07-18 00:08:57 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:08:57 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:08:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:08:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:08:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:08:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:08:59 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:08:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:08:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:08:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:08:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:08:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:09:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:09:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:09:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:09:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:09:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:09:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:09:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:09:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:09:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:09:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:09:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:09:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:09:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:09:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:09:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:09:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:09:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:09:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:09:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:09:05 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:09:05 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:09:05 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:09:06 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:09:06 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:09:08 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:08:55.217299 End time: 2026-07-18 00:09:07.746961 2026-07-18 00:09:08 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:09:08 INFO tclean::::casa ########################################## 2026-07-18 00:09:08 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:09:08 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:09:08 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) 2026-07-18 00:09:08 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:09:08 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:09:08 2026****** 2026-07-18 00:09:08 INFO ImageFitter::fit+ 2026-07-18 00:09:08 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:09:08 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:09:08 INFO ImageFitter::fit+ --- region: 2026-07-18 00:09:08 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:09:08 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:09:08 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:09:08 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:09:08 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:09:08 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:09:08 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:09:08 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) 2026-07-18 00:09:08 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116907 Jy 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:09:08 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:09:08 INFO imstat::::casa ########################################## 2026-07-18 00:09:08 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:09:08 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 ) 2026-07-18 00:09:08 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:09:08 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:09:08 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:09:08 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:09:08 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:09:08 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) 2026-07-18 00:09:08 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:09:08 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:09:08 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:09:08 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:09:08 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-07-18 00:09:08 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-07-18 00:09:08 INFO imstat:::: Values --- 2026-07-18 00:09:08 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:09:08 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:09:08 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:09:08 INFO imstat:::: -- minimum value [min]: -7.78732e-05 Jy/beam 2026-07-18 00:09:08 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:09:08 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:09:08 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:09:08 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:09:08 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:09:08 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:09:08 INFO imstat:::: Statistics --- 2026-07-18 00:09:08 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:09:08 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:09:08 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:09:08 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:09:08 INFO imstat:::: -- Median of the pixel values [median]: -1.86516e-05 Jy/beam 2026-07-18 00:09:08 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73802e-05 Jy/beam 2026-07-18 00:09:08 INFO imstat:::: -- IQR [quartile]: 3.56959e-05 Jy/beam 2026-07-18 00:09:08 INFO imstat:::: -- First quartile [q1]: -3.45348e-05 Jy/beam 2026-07-18 00:09:08 INFO imstat:::: -- Third quartile [q3]: 1.16101e-06 Jy/beam 2026-07-18 00:09:08 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:09:08 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:09:08 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:09:08 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:09:08 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:09:08 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:09:08 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 2026-07-18 00:09:08 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:09:07.805846 End time: 2026-07-18 00:09:07.826592 2026-07-18 00:09:08 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:09:08 INFO imstat::::casa ########################################## 2026-07-18 00:09:08 INFO phaseshift::::casa ########################################## 2026-07-18 00:09:08 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:09:08 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' ) 2026-07-18 00:09:08 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:09:08 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:09:08 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:09:08 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:09:08 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:09:08 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:09:08 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:09:08 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:09:08 INFO MSTransformManager::open Select data 2026-07-18 00:09:08 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:09:11 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:09:11 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 6.352706472deg' successfully parsed 2026-07-18 00:09:11 INFO phaseshift::::casa Shift phase center 2026-07-18 00:09:12 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:09:12 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:09:07.840056 End time: 2026-07-18 00:09:11.764261 2026-07-18 00:09:12 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:09:12 INFO phaseshift::::casa ########################################## 2026-07-18 00:09:12 INFO tclean::::casa ########################################## 2026-07-18 00:09:12 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:09:12 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, 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 ) 2026-07-18 00:09:12 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:09:12 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:09:12 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:09:12 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:09:12 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:09:12 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:09:12 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:09:12 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:09:12 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:09:12 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:09:12 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:09:12 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:09:13 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:09:13 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021499 2026-07-18 00:09:13 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:09:13 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:09:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:09:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:09:15 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:09:15 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:09:15 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:09:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:09:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:09:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:09:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:09:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:09:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:09:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:09:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:09:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:09:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:09:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:09:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:09:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:09:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:09:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:09:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:09:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:09:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:09:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:09:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:09:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:09:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:09:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:09:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:09:22 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:09:22 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:09:22 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:09:23 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:09:24 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:09:25 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:09:11.795299 End time: 2026-07-18 00:09:24.979575 2026-07-18 00:09:25 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:09:25 INFO tclean::::casa ########################################## 2026-07-18 00:09:25 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:09:25 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:09:25 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) 2026-07-18 00:09:25 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:09:25 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:09:25 2026****** 2026-07-18 00:09:25 INFO ImageFitter::fit+ 2026-07-18 00:09:25 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:09:25 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:09:25 INFO ImageFitter::fit+ --- region: 2026-07-18 00:09:25 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:09:25 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:09:25 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:09:25 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:09:25 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:09:25 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:09:25 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:09:25 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) 2026-07-18 00:09:25 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:09:25 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:09:25 INFO imstat::::casa ########################################## 2026-07-18 00:09:25 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:09:25 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 ) 2026-07-18 00:09:25 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:09:25 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:09:25 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:09:25 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:09:25 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:09:25 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) 2026-07-18 00:09:25 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:09:25 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:09:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:09:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:09:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:09:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:09:25 INFO imstat:::: Values --- 2026-07-18 00:09:25 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:09:25 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:09:25 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:09:25 INFO imstat:::: -- minimum value [min]: -7.7777e-05 Jy/beam 2026-07-18 00:09:25 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:09:25 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:09:25 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:09:25 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:09:25 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:09:25 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:09:25 INFO imstat:::: Statistics --- 2026-07-18 00:09:25 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:09:25 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:09:25 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:09:25 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:09:25 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-07-18 00:09:25 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7361e-05 Jy/beam 2026-07-18 00:09:25 INFO imstat:::: -- IQR [quartile]: 3.56027e-05 Jy/beam 2026-07-18 00:09:25 INFO imstat:::: -- First quartile [q1]: -3.45074e-05 Jy/beam 2026-07-18 00:09:25 INFO imstat:::: -- Third quartile [q3]: 1.09529e-06 Jy/beam 2026-07-18 00:09:25 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:09:25 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:09:25 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:09:25 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:09:25 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:09:25 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:09:25 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 2026-07-18 00:09:25 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:09:25.034256 End time: 2026-07-18 00:09:25.054498 2026-07-18 00:09:25 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:09:25 INFO imstat::::casa ########################################## 2026-07-18 00:09:25 INFO phaseshift::::casa ########################################## 2026-07-18 00:09:25 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:09:25 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' ) 2026-07-18 00:09:25 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:09:25 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:09:25 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:09:25 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:09:25 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:09:25 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:09:25 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:09:25 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:09:25 INFO MSTransformManager::open Select data 2026-07-18 00:09:25 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:09:29 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:09:29 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 0.110875644rad' successfully parsed 2026-07-18 00:09:29 INFO phaseshift::::casa Shift phase center 2026-07-18 00:09:29 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:09:30 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:09:25.068331 End time: 2026-07-18 00:09:29.514751 2026-07-18 00:09:30 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:09:30 INFO phaseshift::::casa ########################################## 2026-07-18 00:09:30 INFO tclean::::casa ########################################## 2026-07-18 00:09:30 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:09:30 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, 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 ) 2026-07-18 00:09:30 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:09:30 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:09:30 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:09:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:09:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:09:30 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:09:30 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:09:30 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:09:30 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:09:30 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:09:30 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:09:30 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:09:31 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:09:31 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021339 2026-07-18 00:09:31 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:09:31 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:09:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:09:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:09:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:09:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:09:33 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:09:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:09:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:09:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:09:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:09:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:09:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:09:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:09:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:09:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:09:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:09:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:09:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:09:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:09:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:09:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:09:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:09:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:09:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:09:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:09:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:09:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:09:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:09:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:09:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:09:40 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:09:40 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:09:40 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:09:40 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:09:41 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:09:42 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:09:29.544391 End time: 2026-07-18 00:09:42.270810 2026-07-18 00:09:42 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:09:42 INFO tclean::::casa ########################################## 2026-07-18 00:09:42 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:09:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:09:42 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) 2026-07-18 00:09:42 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:09:42 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:09:42 2026****** 2026-07-18 00:09:42 INFO ImageFitter::fit+ 2026-07-18 00:09:42 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:09:42 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:09:42 INFO ImageFitter::fit+ --- region: 2026-07-18 00:09:42 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:09:42 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:09:42 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:09:42 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:09:42 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:09:42 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:09:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:09:42 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) 2026-07-18 00:09:42 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:09:42 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:09:42 INFO imstat::::casa ########################################## 2026-07-18 00:09:42 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:09:42 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 ) 2026-07-18 00:09:42 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:09:42 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:09:42 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:09:42 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:09:42 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:09:42 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) 2026-07-18 00:09:42 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:09:42 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:09:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:09:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:09:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:09:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:09:42 INFO imstat:::: Values --- 2026-07-18 00:09:42 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:09:42 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:09:42 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:09:42 INFO imstat:::: -- minimum value [min]: -7.77849e-05 Jy/beam 2026-07-18 00:09:42 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:09:42 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-07-18 00:09:42 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:09:42 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-07-18 00:09:42 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:09:42 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:09:42 INFO imstat:::: Statistics --- 2026-07-18 00:09:42 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:09:42 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:09:42 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:09:42 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:09:42 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-07-18 00:09:42 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73549e-05 Jy/beam 2026-07-18 00:09:42 INFO imstat:::: -- IQR [quartile]: 3.56016e-05 Jy/beam 2026-07-18 00:09:42 INFO imstat:::: -- First quartile [q1]: -3.45087e-05 Jy/beam 2026-07-18 00:09:42 INFO imstat:::: -- Third quartile [q3]: 1.0929e-06 Jy/beam 2026-07-18 00:09:42 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:09:42 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:09:42 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:09:42 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:09:42 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:09:42 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:09:42 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 2026-07-18 00:09:42 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:09:42.327328 End time: 2026-07-18 00:09:42.350067 2026-07-18 00:09:42 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:09:42 INFO imstat::::casa ########################################## 2026-07-18 00:09:42 INFO phaseshift::::casa ########################################## 2026-07-18 00:09:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:09:42 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 05:00:21.5326 +006d21m09.7433' ) 2026-07-18 00:09:42 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:09:42 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:09:42 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:09:42 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:09:42 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:09:42 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:09:42 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:09:42 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:09:42 INFO MSTransformManager::open Select data 2026-07-18 00:09:42 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:09:45 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:09:45 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 +006d21m09.7433' successfully parsed 2026-07-18 00:09:45 INFO phaseshift::::casa Shift phase center 2026-07-18 00:09:46 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:09:46 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:09:42.362873 End time: 2026-07-18 00:09:46.168235 2026-07-18 00:09:46 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:09:46 INFO phaseshift::::casa ########################################## 2026-07-18 00:09:46 INFO tclean::::casa ########################################## 2026-07-18 00:09:46 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:09:46 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, 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 ) 2026-07-18 00:09:46 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:09:46 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:09:46 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:09:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:09:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:09:46 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:09:46 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:09:46 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:09:46 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:09:46 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:09:46 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:09:46 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:09:47 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:09:48 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020918 2026-07-18 00:09:48 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:09:48 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:09:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:09:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:09:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:09:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:09:50 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:09:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:09:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:09:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:09:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:09:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:09:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:09:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:09:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:09:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:09:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:09:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:09:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:09:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:09:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:09:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:09:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:09:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:09:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:09:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:09:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:09:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:09:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:09:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:09:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:09:56 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:09:56 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:09:56 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:09:57 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:09:57 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:09:58 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:09:46.197386 End time: 2026-07-18 00:09:58.120962 2026-07-18 00:09:58 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:09:58 INFO tclean::::casa ########################################## 2026-07-18 00:09:58 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:09:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:09:58 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) 2026-07-18 00:09:58 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:09:58 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:09:58 2026****** 2026-07-18 00:09:58 INFO ImageFitter::fit+ 2026-07-18 00:09:58 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:09:58 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:09:58 INFO ImageFitter::fit+ --- region: 2026-07-18 00:09:58 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:09:58 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:09:58 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:09:58 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:09:58 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:09:58 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:09:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:09:58 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) 2026-07-18 00:09:58 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:09:58 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:09:58 INFO imstat::::casa ########################################## 2026-07-18 00:09:58 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:09:58 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 ) 2026-07-18 00:09:58 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:09:58 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:09:58 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:09:58 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:09:58 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:09:58 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) 2026-07-18 00:09:58 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:09:58 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:09:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:09:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:09:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:09:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:09:58 INFO imstat:::: Values --- 2026-07-18 00:09:58 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:09:58 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:09:58 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:09:58 INFO imstat:::: -- minimum value [min]: -7.77795e-05 Jy/beam 2026-07-18 00:09:58 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:09:58 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:09:58 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:09:58 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:09:58 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:09:58 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:09:58 INFO imstat:::: Statistics --- 2026-07-18 00:09:58 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:09:58 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:09:58 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:09:58 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:09:58 INFO imstat:::: -- Median of the pixel values [median]: -1.86702e-05 Jy/beam 2026-07-18 00:09:58 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73612e-05 Jy/beam 2026-07-18 00:09:58 INFO imstat:::: -- IQR [quartile]: 3.56029e-05 Jy/beam 2026-07-18 00:09:58 INFO imstat:::: -- First quartile [q1]: -3.45082e-05 Jy/beam 2026-07-18 00:09:58 INFO imstat:::: -- Third quartile [q3]: 1.09472e-06 Jy/beam 2026-07-18 00:09:58 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:09:58 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:09:58 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:09:58 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:09:58 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:09:58 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:09:58 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 2026-07-18 00:09:58 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:09:58.175348 End time: 2026-07-18 00:09:58.195484 2026-07-18 00:09:58 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:09:58 INFO imstat::::casa ########################################## 2026-07-18 00:09:58 INFO phaseshift::::casa ########################################## 2026-07-18 00:09:58 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:09:58 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 05:00:21.5326 00:25:24.6496' ) 2026-07-18 00:09:58 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:09:58 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:09:58 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:09:58 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:09:58 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:09:58 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:09:58 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:09:58 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:09:58 INFO MSTransformManager::open Select data 2026-07-18 00:09:58 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:10:01 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 ".". 2026-07-18 00:10:01 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 00:25:24.6496' successfully parsed 2026-07-18 00:10:01 INFO phaseshift::::casa Shift phase center 2026-07-18 00:10:02 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:10:02 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:09:58.208490 End time: 2026-07-18 00:10:02.035621 2026-07-18 00:10:02 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:10:02 INFO phaseshift::::casa ########################################## 2026-07-18 00:10:02 INFO tclean::::casa ########################################## 2026-07-18 00:10:02 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:10:02 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, 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 ) 2026-07-18 00:10:02 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:10:02 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:10:02 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:10:02 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:10:02 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:10:02 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:10:02 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:10:02 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:10:02 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:10:02 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:10:02 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:10:02 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:10:03 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:10:03 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021178 2026-07-18 00:10:03 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:10:03 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:10:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:10:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:10:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:10:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:10:05 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:10:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:10:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:10:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:10:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:10:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:10:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:10:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:10:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:10:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:10:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:10:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:10:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:10:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:10:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:10:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:10:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:10:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:10:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:10:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:10:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:10:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:10:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:10:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:10:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:10:11 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:10:11 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:10:11 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:10:12 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:10:12 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:10:13 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:10:02.067782 End time: 2026-07-18 00:10:13.300506 2026-07-18 00:10:13 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:10:13 INFO tclean::::casa ########################################## 2026-07-18 00:10:13 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:10:13 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:10:13 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) 2026-07-18 00:10:13 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:10:13 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:10:13 2026****** 2026-07-18 00:10:13 INFO ImageFitter::fit+ 2026-07-18 00:10:13 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:10:13 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:10:13 INFO ImageFitter::fit+ --- region: 2026-07-18 00:10:13 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:10:13 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:10:13 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:10:13 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:10:13 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:10:13 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:10:13 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:10:13 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) 2026-07-18 00:10:13 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116907 Jy 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:10:13 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:10:13 INFO imstat::::casa ########################################## 2026-07-18 00:10:13 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:10:13 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 ) 2026-07-18 00:10:13 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:10:13 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:10:13 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:10:13 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:10:13 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:10:13 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) 2026-07-18 00:10:13 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:10:13 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:10:13 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:10:13 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:10:13 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-07-18 00:10:13 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-07-18 00:10:13 INFO imstat:::: Values --- 2026-07-18 00:10:13 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:10:13 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:10:13 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:10:13 INFO imstat:::: -- minimum value [min]: -7.78732e-05 Jy/beam 2026-07-18 00:10:13 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:10:13 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:10:13 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:10:13 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:10:13 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:10:13 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:10:13 INFO imstat:::: Statistics --- 2026-07-18 00:10:13 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:10:13 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:10:13 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:10:13 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:10:13 INFO imstat:::: -- Median of the pixel values [median]: -1.86516e-05 Jy/beam 2026-07-18 00:10:13 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73802e-05 Jy/beam 2026-07-18 00:10:13 INFO imstat:::: -- IQR [quartile]: 3.56959e-05 Jy/beam 2026-07-18 00:10:13 INFO imstat:::: -- First quartile [q1]: -3.45348e-05 Jy/beam 2026-07-18 00:10:13 INFO imstat:::: -- Third quartile [q3]: 1.16101e-06 Jy/beam 2026-07-18 00:10:13 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:10:13 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:10:13 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:10:13 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:10:13 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:10:13 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:10:13 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 2026-07-18 00:10:13 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:10:13.357640 End time: 2026-07-18 00:10:13.379291 2026-07-18 00:10:13 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:10:13 INFO imstat::::casa ########################################## 2026-07-18 00:10:13 INFO phaseshift::::casa ########################################## 2026-07-18 00:10:13 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:10:13 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 05:00:21.5326 6.352706472deg' ) 2026-07-18 00:10:13 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:10:13 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:10:13 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:10:13 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:10:13 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:10:13 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:10:13 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:10:13 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:10:13 INFO MSTransformManager::open Select data 2026-07-18 00:10:13 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:10:17 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:10:17 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 6.352706472deg' successfully parsed 2026-07-18 00:10:17 INFO phaseshift::::casa Shift phase center 2026-07-18 00:10:17 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:10:17 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:10:13.392465 End time: 2026-07-18 00:10:17.372515 2026-07-18 00:10:17 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:10:17 INFO phaseshift::::casa ########################################## 2026-07-18 00:10:17 INFO tclean::::casa ########################################## 2026-07-18 00:10:17 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:10:17 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, 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 ) 2026-07-18 00:10:17 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:10:17 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:10:17 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:10:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:10:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:10:18 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:10:18 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:10:18 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:10:18 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:10:18 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:10:18 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:10:18 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:10:19 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:10:19 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022188 2026-07-18 00:10:19 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:10:19 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:10:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:10:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:10:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:10:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:10:21 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:10:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:10:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:10:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:10:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:10:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:10:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:10:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:10:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:10:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:10:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:10:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:10:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:10:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:10:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:10:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:10:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:10:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:10:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:10:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:10:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:10:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:10:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:10:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:10:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:10:27 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:10:27 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:10:27 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:10:28 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:10:28 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:10:30 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:10:17.402141 End time: 2026-07-18 00:10:29.626368 2026-07-18 00:10:30 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:10:30 INFO tclean::::casa ########################################## 2026-07-18 00:10:30 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:10:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:10:30 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) 2026-07-18 00:10:30 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:10:30 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:10:30 2026****** 2026-07-18 00:10:30 INFO ImageFitter::fit+ 2026-07-18 00:10:30 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:10:30 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:10:30 INFO ImageFitter::fit+ --- region: 2026-07-18 00:10:30 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:10:30 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:10:30 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:10:30 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:10:30 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:10:30 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:10:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:10:30 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) 2026-07-18 00:10:30 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:10:30 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:10:30 INFO imstat::::casa ########################################## 2026-07-18 00:10:30 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:10:30 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 ) 2026-07-18 00:10:30 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:10:30 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:10:30 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:10:30 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:10:30 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:10:30 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) 2026-07-18 00:10:30 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:10:30 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:10:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:10:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:10:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:10:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:10:30 INFO imstat:::: Values --- 2026-07-18 00:10:30 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:10:30 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:10:30 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:10:30 INFO imstat:::: -- minimum value [min]: -7.7777e-05 Jy/beam 2026-07-18 00:10:30 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:10:30 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:10:30 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:10:30 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:10:30 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:10:30 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:10:30 INFO imstat:::: Statistics --- 2026-07-18 00:10:30 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:10:30 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:10:30 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:10:30 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:10:30 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-07-18 00:10:30 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7361e-05 Jy/beam 2026-07-18 00:10:30 INFO imstat:::: -- IQR [quartile]: 3.56027e-05 Jy/beam 2026-07-18 00:10:30 INFO imstat:::: -- First quartile [q1]: -3.45074e-05 Jy/beam 2026-07-18 00:10:30 INFO imstat:::: -- Third quartile [q3]: 1.09529e-06 Jy/beam 2026-07-18 00:10:30 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:10:30 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:10:30 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:10:30 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:10:30 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:10:30 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:10:30 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 2026-07-18 00:10:30 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:10:29.684805 End time: 2026-07-18 00:10:29.708948 2026-07-18 00:10:30 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:10:30 INFO imstat::::casa ########################################## 2026-07-18 00:10:30 INFO phaseshift::::casa ########################################## 2026-07-18 00:10:30 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:10:30 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 0.110875644rad' ) 2026-07-18 00:10:30 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:10:30 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:10:30 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:10:30 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:10:30 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:10:30 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:10:30 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:10:30 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:10:30 INFO MSTransformManager::open Select data 2026-07-18 00:10:30 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:10:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:10:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 0.110875644rad' successfully parsed 2026-07-18 00:10:33 INFO phaseshift::::casa Shift phase center 2026-07-18 00:10:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:10:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:10:29.722707 End time: 2026-07-18 00:10:33.675846 2026-07-18 00:10:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:10:34 INFO phaseshift::::casa ########################################## 2026-07-18 00:10:34 INFO tclean::::casa ########################################## 2026-07-18 00:10:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:10:34 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, 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 ) 2026-07-18 00:10:34 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:10:34 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:10:34 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:10:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:10:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:10:34 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:10:34 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:10:34 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:10:34 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:10:34 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:10:34 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:10:34 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:10:35 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:10:35 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02289 2026-07-18 00:10:35 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:10:35 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:10:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:10:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:10:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:10:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:10:38 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:10:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:10:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:10:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:10:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:10:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:10:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:10:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:10:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:10:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:10:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:10:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:10:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:10:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:10:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:10:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:10:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:10:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:10:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:10:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:10:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:10:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:10:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:10:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:10:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:10:44 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:10:44 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:10:44 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:10:45 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:10:45 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:10:46 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:10:33.705197 End time: 2026-07-18 00:10:46.468782 2026-07-18 00:10:46 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:10:46 INFO tclean::::casa ########################################## 2026-07-18 00:10:46 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:10:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:10:46 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) 2026-07-18 00:10:46 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:10:46 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:10:46 2026****** 2026-07-18 00:10:46 INFO ImageFitter::fit+ 2026-07-18 00:10:46 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:10:46 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:10:46 INFO ImageFitter::fit+ --- region: 2026-07-18 00:10:46 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:10:46 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:10:46 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:10:46 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:10:46 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:10:47 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:10:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:10:47 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) 2026-07-18 00:10:47 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:10:47 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:10:47 INFO imstat::::casa ########################################## 2026-07-18 00:10:47 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:10:47 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 ) 2026-07-18 00:10:47 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:10:47 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:10:47 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:10:47 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:10:47 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:10:47 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) 2026-07-18 00:10:47 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:10:47 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:10:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:10:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:10:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:10:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:10:47 INFO imstat:::: Values --- 2026-07-18 00:10:47 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:10:47 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:10:47 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:10:47 INFO imstat:::: -- minimum value [min]: -7.77849e-05 Jy/beam 2026-07-18 00:10:47 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:10:47 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-07-18 00:10:47 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:10:47 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-07-18 00:10:47 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:10:47 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:10:47 INFO imstat:::: Statistics --- 2026-07-18 00:10:47 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:10:47 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:10:47 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:10:47 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:10:47 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-07-18 00:10:47 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73549e-05 Jy/beam 2026-07-18 00:10:47 INFO imstat:::: -- IQR [quartile]: 3.56016e-05 Jy/beam 2026-07-18 00:10:47 INFO imstat:::: -- First quartile [q1]: -3.45087e-05 Jy/beam 2026-07-18 00:10:47 INFO imstat:::: -- Third quartile [q3]: 1.0929e-06 Jy/beam 2026-07-18 00:10:47 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:10:47 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:10:47 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:10:47 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:10:47 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:10:47 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:10:47 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 2026-07-18 00:10:47 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:10:46.525008 End time: 2026-07-18 00:10:46.549929 2026-07-18 00:10:47 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:10:47 INFO imstat::::casa ########################################## 2026-07-18 00:10:47 INFO phaseshift::::casa ########################################## 2026-07-18 00:10:47 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:10:47 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg +006d21m09.7433' ) 2026-07-18 00:10:47 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:10:47 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:10:47 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:10:47 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:10:47 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:10:47 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:10:47 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:10:47 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:10:47 INFO MSTransformManager::open Select data 2026-07-18 00:10:47 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:10:50 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:10:50 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg +006d21m09.7433' successfully parsed 2026-07-18 00:10:50 INFO phaseshift::::casa Shift phase center 2026-07-18 00:10:51 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:10:51 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:10:46.562513 End time: 2026-07-18 00:10:50.604390 2026-07-18 00:10:51 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:10:51 INFO phaseshift::::casa ########################################## 2026-07-18 00:10:51 INFO tclean::::casa ########################################## 2026-07-18 00:10:51 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:10:51 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, 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 ) 2026-07-18 00:10:51 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:10:51 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:10:51 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:10:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:10:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:10:51 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:10:51 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:10:51 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:10:51 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:10:51 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:10:51 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:10:51 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:10:52 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:10:52 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020859 2026-07-18 00:10:52 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:10:52 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:10:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:10:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:10:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:10:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:10:54 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:10:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:10:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:10:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:10:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:10:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:10:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:10:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:10:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:10:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:10:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:10:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:10:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:10:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:10:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:10:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:10:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:10:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:10:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:10:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:10:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:10:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:10:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:10:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:11:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:11:00 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:11:00 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:11:00 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:11:00 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:11:01 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:11:02 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:10:50.639352 End time: 2026-07-18 00:11:01.946042 2026-07-18 00:11:02 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:11:02 INFO tclean::::casa ########################################## 2026-07-18 00:11:02 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:11:02 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:11:02 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) 2026-07-18 00:11:02 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:11:02 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:11:02 2026****** 2026-07-18 00:11:02 INFO ImageFitter::fit+ 2026-07-18 00:11:02 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:11:02 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:11:02 INFO ImageFitter::fit+ --- region: 2026-07-18 00:11:02 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:11:02 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:11:02 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:11:02 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:11:02 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:11:02 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:11:02 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:11:02 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) 2026-07-18 00:11:02 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116867 Jy 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126483 Jy 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ --- dec: 127.999996 +/- 0.000097 pixels 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:11:02 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:11:02 INFO imstat::::casa ########################################## 2026-07-18 00:11:02 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:11:02 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 ) 2026-07-18 00:11:02 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:11:02 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:11:02 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:11:02 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:11:02 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:11:02 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) 2026-07-18 00:11:02 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:11:02 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:11:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:11:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:11:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:11:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:11:02 INFO imstat:::: Values --- 2026-07-18 00:11:02 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:11:02 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:11:02 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:11:02 INFO imstat:::: -- minimum value [min]: -7.77768e-05 Jy/beam 2026-07-18 00:11:02 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:11:02 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:11:02 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:11:02 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:11:02 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:11:02 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:11:02 INFO imstat:::: Statistics --- 2026-07-18 00:11:02 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:11:02 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:11:02 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:11:02 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:11:02 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-07-18 00:11:02 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73609e-05 Jy/beam 2026-07-18 00:11:02 INFO imstat:::: -- IQR [quartile]: 3.56013e-05 Jy/beam 2026-07-18 00:11:02 INFO imstat:::: -- First quartile [q1]: -3.4507e-05 Jy/beam 2026-07-18 00:11:02 INFO imstat:::: -- Third quartile [q3]: 1.09435e-06 Jy/beam 2026-07-18 00:11:02 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:11:02 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:11:02 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:11:02 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:11:02 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:11:02 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:11:02 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 2026-07-18 00:11:02 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:11:02.003825 End time: 2026-07-18 00:11:02.037584 2026-07-18 00:11:02 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:11:02 INFO imstat::::casa ########################################## 2026-07-18 00:11:02 INFO phaseshift::::casa ########################################## 2026-07-18 00:11:02 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:11:02 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 00:25:24.6496' ) 2026-07-18 00:11:02 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:11:02 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:11:02 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:11:02 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:11:02 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:11:02 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:11:02 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:11:02 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:11:02 INFO MSTransformManager::open Select data 2026-07-18 00:11:02 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:11:05 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 ".". 2026-07-18 00:11:05 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 00:25:24.6496' successfully parsed 2026-07-18 00:11:05 INFO phaseshift::::casa Shift phase center 2026-07-18 00:11:05 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:11:05 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:11:02.051153 End time: 2026-07-18 00:11:05.470644 2026-07-18 00:11:05 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:11:05 INFO phaseshift::::casa ########################################## 2026-07-18 00:11:06 INFO tclean::::casa ########################################## 2026-07-18 00:11:06 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:11:06 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, 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 ) 2026-07-18 00:11:06 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:11:06 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:11:06 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:11:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:11:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:11:06 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:11:06 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:11:06 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:11:06 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:11:06 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:11:06 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:11:06 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:11:07 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:11:07 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020767 2026-07-18 00:11:07 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:11:07 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:11:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:11:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:11:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:11:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:11:09 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:11:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:11:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:11:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:11:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:11:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:11:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:11:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:11:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:11:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:11:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:11:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:11:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:11:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:11:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:11:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:11:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:11:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:11:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:11:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:11:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:11:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:11:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:11:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:11:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:11:15 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:11:15 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:11:15 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:11:16 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:11:16 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:11:18 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:11:05.500981 End time: 2026-07-18 00:11:17.504163 2026-07-18 00:11:18 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:11:18 INFO tclean::::casa ########################################## 2026-07-18 00:11:18 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:11:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:11:18 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) 2026-07-18 00:11:18 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:11:18 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:11:18 2026****** 2026-07-18 00:11:18 INFO ImageFitter::fit+ 2026-07-18 00:11:18 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:11:18 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:11:18 INFO ImageFitter::fit+ --- region: 2026-07-18 00:11:18 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:11:18 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:11:18 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:11:18 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:11:18 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:11:18 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:11:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:11:18 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) 2026-07-18 00:11:18 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116903 Jy 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126517 Jy 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:11:18 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:11:18 INFO imstat::::casa ########################################## 2026-07-18 00:11:18 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:11:18 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 ) 2026-07-18 00:11:18 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:11:18 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:11:18 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:11:18 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:11:18 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:11:18 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) 2026-07-18 00:11:18 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:11:18 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:11:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:11:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:11:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-07-18 00:11:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-07-18 00:11:18 INFO imstat:::: Values --- 2026-07-18 00:11:18 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:11:18 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:11:18 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:11:18 INFO imstat:::: -- minimum value [min]: -7.78731e-05 Jy/beam 2026-07-18 00:11:18 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:11:18 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:11:18 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:11:18 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:11:18 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:11:18 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:11:18 INFO imstat:::: Statistics --- 2026-07-18 00:11:18 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:11:18 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:11:18 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:11:18 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:11:18 INFO imstat:::: -- Median of the pixel values [median]: -1.86503e-05 Jy/beam 2026-07-18 00:11:18 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73798e-05 Jy/beam 2026-07-18 00:11:18 INFO imstat:::: -- IQR [quartile]: 3.56966e-05 Jy/beam 2026-07-18 00:11:18 INFO imstat:::: -- First quartile [q1]: -3.45352e-05 Jy/beam 2026-07-18 00:11:18 INFO imstat:::: -- Third quartile [q3]: 1.16146e-06 Jy/beam 2026-07-18 00:11:18 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:11:18 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:11:18 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:11:18 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:11:18 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:11:18 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:11:18 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 2026-07-18 00:11:18 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:11:17.562371 End time: 2026-07-18 00:11:17.601609 2026-07-18 00:11:18 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:11:18 INFO imstat::::casa ########################################## 2026-07-18 00:11:18 INFO phaseshift::::casa ########################################## 2026-07-18 00:11:18 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:11:18 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 75.089719167deg 6.352706472deg' ) 2026-07-18 00:11:18 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:11:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:11:18 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:11:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:11:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:11:18 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:11:18 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:11:18 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:11:18 INFO MSTransformManager::open Select data 2026-07-18 00:11:18 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:11:21 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:11:21 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 6.352706472deg' successfully parsed 2026-07-18 00:11:21 INFO phaseshift::::casa Shift phase center 2026-07-18 00:11:21 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:11:21 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:11:17.616304 End time: 2026-07-18 00:11:21.444130 2026-07-18 00:11:21 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:11:21 INFO phaseshift::::casa ########################################## 2026-07-18 00:11:21 INFO tclean::::casa ########################################## 2026-07-18 00:11:21 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:11:21 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, 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 ) 2026-07-18 00:11:21 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:11:21 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:11:21 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:11:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:11:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:11:22 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:11:22 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:11:22 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:11:22 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:11:22 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:11:22 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:11:22 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:11:23 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:11:23 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022897 2026-07-18 00:11:23 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:11:23 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:11:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:11:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:11:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:11:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:11:25 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:11:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:11:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:11:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:11:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:11:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:11:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:11:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:11:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:11:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:11:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:11:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:11:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:11:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:11:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:11:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:11:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:11:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:11:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:11:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:11:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:11:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:11:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:11:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:11:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:11:31 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:11:31 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:11:31 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:11:32 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:11:32 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:11:34 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:11:21.484458 End time: 2026-07-18 00:11:33.628288 2026-07-18 00:11:34 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:11:34 INFO tclean::::casa ########################################## 2026-07-18 00:11:34 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:11:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:11:34 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) 2026-07-18 00:11:34 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:11:34 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:11:34 2026****** 2026-07-18 00:11:34 INFO ImageFitter::fit+ 2026-07-18 00:11:34 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:11:34 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:11:34 INFO ImageFitter::fit+ --- region: 2026-07-18 00:11:34 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:11:34 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:11:34 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:11:34 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:11:34 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:11:34 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:11:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:11:34 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) 2026-07-18 00:11:34 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011687 Jy 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ --- dec: 127.999996 +/- 0.000097 pixels 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:11:34 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:11:34 INFO imstat::::casa ########################################## 2026-07-18 00:11:34 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:11:34 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 ) 2026-07-18 00:11:34 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:11:34 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:11:34 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:11:34 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:11:34 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:11:34 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) 2026-07-18 00:11:34 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:11:34 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:11:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:11:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:11:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:11:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:11:34 INFO imstat:::: Values --- 2026-07-18 00:11:34 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:11:34 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:11:34 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:11:34 INFO imstat:::: -- minimum value [min]: -7.77771e-05 Jy/beam 2026-07-18 00:11:34 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:11:34 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:11:34 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:11:34 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:11:34 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:11:34 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:11:34 INFO imstat:::: Statistics --- 2026-07-18 00:11:34 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:11:34 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:11:34 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:11:34 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:11:34 INFO imstat:::: -- Median of the pixel values [median]: -1.86715e-05 Jy/beam 2026-07-18 00:11:34 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73619e-05 Jy/beam 2026-07-18 00:11:34 INFO imstat:::: -- IQR [quartile]: 3.56021e-05 Jy/beam 2026-07-18 00:11:34 INFO imstat:::: -- First quartile [q1]: -3.45061e-05 Jy/beam 2026-07-18 00:11:34 INFO imstat:::: -- Third quartile [q3]: 1.09605e-06 Jy/beam 2026-07-18 00:11:34 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:11:34 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:11:34 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:11:34 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:11:34 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:11:34 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:11:34 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 2026-07-18 00:11:34 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:11:33.695167 End time: 2026-07-18 00:11:33.728652 2026-07-18 00:11:34 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:11:34 INFO imstat::::casa ########################################## 2026-07-18 00:11:34 INFO phaseshift::::casa ########################################## 2026-07-18 00:11:34 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:11:34 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 75.089719167deg 0.110875644rad' ) 2026-07-18 00:11:34 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:11:34 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:11:34 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:11:34 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:11:34 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:11:34 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:11:34 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:11:34 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:11:34 INFO MSTransformManager::open Select data 2026-07-18 00:11:34 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:11:37 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:11:37 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 0.110875644rad' successfully parsed 2026-07-18 00:11:37 INFO phaseshift::::casa Shift phase center 2026-07-18 00:11:37 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:11:37 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:11:33.742008 End time: 2026-07-18 00:11:37.385316 2026-07-18 00:11:37 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:11:37 INFO phaseshift::::casa ########################################## 2026-07-18 00:11:37 INFO tclean::::casa ########################################## 2026-07-18 00:11:37 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:11:37 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, 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 ) 2026-07-18 00:11:37 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:11:37 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:11:37 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:11:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:11:38 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:11:38 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:11:38 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:11:38 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:11:38 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:11:38 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:11:38 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:11:38 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:11:39 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:11:39 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025366 2026-07-18 00:11:39 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:11:39 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:11:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:11:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:11:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:11:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:11:41 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:11:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:11:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:11:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:11:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:11:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:11:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:11:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:11:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:11:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:11:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:11:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:11:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:11:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:11:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:11:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:11:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:11:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:11:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:11:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:11:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:11:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:11:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:11:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:11:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:11:46 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:11:46 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:11:46 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:11:47 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:11:47 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:11:49 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:11:37.414631 End time: 2026-07-18 00:11:48.536296 2026-07-18 00:11:49 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:11:49 INFO tclean::::casa ########################################## 2026-07-18 00:11:49 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:11:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:11:49 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) 2026-07-18 00:11:49 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:11:49 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:11:49 2026****** 2026-07-18 00:11:49 INFO ImageFitter::fit+ 2026-07-18 00:11:49 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:11:49 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:11:49 INFO ImageFitter::fit+ --- region: 2026-07-18 00:11:49 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:11:49 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:11:49 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:11:49 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:11:49 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:11:49 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:11:49 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:11:49 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) 2026-07-18 00:11:49 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126482 Jy 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:11:49 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:11:49 INFO imstat::::casa ########################################## 2026-07-18 00:11:49 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:11:49 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 ) 2026-07-18 00:11:49 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:11:49 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:11:49 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:11:49 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:11:49 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:11:49 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) 2026-07-18 00:11:49 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:11:49 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:11:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:11:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:11:49 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:11:49 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:11:49 INFO imstat:::: Values --- 2026-07-18 00:11:49 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:11:49 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:11:49 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:11:49 INFO imstat:::: -- minimum value [min]: -7.77855e-05 Jy/beam 2026-07-18 00:11:49 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:11:49 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-07-18 00:11:49 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:11:49 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-07-18 00:11:49 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:11:49 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:11:49 INFO imstat:::: Statistics --- 2026-07-18 00:11:49 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:11:49 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:11:49 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:11:49 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:11:49 INFO imstat:::: -- Median of the pixel values [median]: -1.86732e-05 Jy/beam 2026-07-18 00:11:49 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73562e-05 Jy/beam 2026-07-18 00:11:49 INFO imstat:::: -- IQR [quartile]: 3.56008e-05 Jy/beam 2026-07-18 00:11:49 INFO imstat:::: -- First quartile [q1]: -3.45107e-05 Jy/beam 2026-07-18 00:11:49 INFO imstat:::: -- Third quartile [q3]: 1.09015e-06 Jy/beam 2026-07-18 00:11:49 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:11:49 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:11:49 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:11:49 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:11:49 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:11:49 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:11:49 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 2026-07-18 00:11:49 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:11:48.589928 End time: 2026-07-18 00:11:48.610080 2026-07-18 00:11:49 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:11:49 INFO imstat::::casa ########################################## 2026-07-18 00:11:49 INFO phaseshift::::casa ########################################## 2026-07-18 00:11:49 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:11:49 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 1.310562834rad +006d21m09.7433' ) 2026-07-18 00:11:49 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:11:49 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:11:49 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:11:49 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:11:49 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:11:49 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:11:49 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:11:49 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:11:49 INFO MSTransformManager::open Select data 2026-07-18 00:11:49 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:11:51 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:11:51 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad +006d21m09.7433' successfully parsed 2026-07-18 00:11:52 INFO phaseshift::::casa Shift phase center 2026-07-18 00:11:52 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:11:52 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:11:48.623209 End time: 2026-07-18 00:11:52.367456 2026-07-18 00:11:52 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:11:52 INFO phaseshift::::casa ########################################## 2026-07-18 00:11:52 INFO tclean::::casa ########################################## 2026-07-18 00:11:52 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:11:52 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, 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 ) 2026-07-18 00:11:52 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:11:52 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:11:52 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:11:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:11:53 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:11:53 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:11:53 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:11:53 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:11:53 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:11:53 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:11:53 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:11:53 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:11:54 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:11:54 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021017 2026-07-18 00:11:54 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:11:54 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:11:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:11:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:11:56 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:11:56 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:11:56 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:11:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:11:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:11:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:11:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:11:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:11:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:11:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:11:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:11:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:11:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:11:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:12:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:12:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:12:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:12:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:12:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:12:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:12:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:12:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:12:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:12:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:12:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:12:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:12:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:12:02 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:12:02 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:12:02 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:12:03 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:12:04 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:12:05 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:11:52.397156 End time: 2026-07-18 00:12:04.752147 2026-07-18 00:12:05 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:12:05 INFO tclean::::casa ########################################## 2026-07-18 00:12:05 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:12:05 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:12:05 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) 2026-07-18 00:12:05 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:12:05 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:12:05 2026****** 2026-07-18 00:12:05 INFO ImageFitter::fit+ 2026-07-18 00:12:05 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:12:05 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:12:05 INFO ImageFitter::fit+ --- region: 2026-07-18 00:12:05 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:12:05 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:12:05 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:12:05 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:12:05 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:12:05 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:12:05 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:12:05 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) 2026-07-18 00:12:05 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000006 +/- 0.000777 arcsec 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ --- ra: 128.000007 +/- 0.000127 pixels 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ --- dec: 127.999994 +/- 0.000097 pixels 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:12:05 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:12:05 INFO imstat::::casa ########################################## 2026-07-18 00:12:05 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:12:05 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 ) 2026-07-18 00:12:05 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:12:05 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:12:05 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:12:05 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:12:05 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:12:05 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) 2026-07-18 00:12:05 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:12:05 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:12:05 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:12:05 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:12:05 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:12:05 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:12:05 INFO imstat:::: Values --- 2026-07-18 00:12:05 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:12:05 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:12:05 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:12:05 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-07-18 00:12:05 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:12:05 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:12:05 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:12:05 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:12:05 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:12:05 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:12:05 INFO imstat:::: Statistics --- 2026-07-18 00:12:05 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:12:05 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:12:05 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:12:05 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:12:05 INFO imstat:::: -- Median of the pixel values [median]: -1.86669e-05 Jy/beam 2026-07-18 00:12:05 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73635e-05 Jy/beam 2026-07-18 00:12:05 INFO imstat:::: -- IQR [quartile]: 3.56081e-05 Jy/beam 2026-07-18 00:12:05 INFO imstat:::: -- First quartile [q1]: -3.45085e-05 Jy/beam 2026-07-18 00:12:05 INFO imstat:::: -- Third quartile [q3]: 1.09959e-06 Jy/beam 2026-07-18 00:12:05 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:12:05 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:12:05 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:12:05 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:12:05 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:12:05 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:12:05 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 2026-07-18 00:12:05 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:12:04.817632 End time: 2026-07-18 00:12:04.838635 2026-07-18 00:12:05 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:12:05 INFO imstat::::casa ########################################## 2026-07-18 00:12:05 INFO phaseshift::::casa ########################################## 2026-07-18 00:12:05 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:12:05 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' ) 2026-07-18 00:12:05 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:12:05 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:12:05 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:12:05 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:12:05 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:12:05 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:12:05 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:12:05 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:12:05 INFO MSTransformManager::open Select data 2026-07-18 00:12:05 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:12:08 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 ".". 2026-07-18 00:12:08 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 00:25:24.6496' successfully parsed 2026-07-18 00:12:08 INFO phaseshift::::casa Shift phase center 2026-07-18 00:12:09 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:12:09 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:12:04.852712 End time: 2026-07-18 00:12:08.617465 2026-07-18 00:12:09 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:12:09 INFO phaseshift::::casa ########################################## 2026-07-18 00:12:09 INFO tclean::::casa ########################################## 2026-07-18 00:12:09 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:12:09 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, 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 ) 2026-07-18 00:12:09 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:12:09 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:12:09 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:12:09 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:12:09 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:12:09 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:12:09 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:12:09 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:12:09 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:12:09 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:12:09 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:12:09 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:12:10 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:12:10 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020708 2026-07-18 00:12:10 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:12:10 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:12:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:12:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:12:12 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:12:12 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:12:12 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:12:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:12:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:12:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:12:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:12:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:12:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:12:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:12:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:12:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:12:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:12:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:12:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:12:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:12:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:12:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:12:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:12:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:12:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:12:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:12:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:12:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:12:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:12:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:12:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:12:18 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:12:18 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:12:18 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:12:19 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:12:19 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:12:21 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:12:08.647774 End time: 2026-07-18 00:12:20.886850 2026-07-18 00:12:21 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:12:21 INFO tclean::::casa ########################################## 2026-07-18 00:12:21 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:12:21 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:12:21 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) 2026-07-18 00:12:21 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:12:21 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:12:21 2026****** 2026-07-18 00:12:21 INFO ImageFitter::fit+ 2026-07-18 00:12:21 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:12:21 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:12:21 INFO ImageFitter::fit+ --- region: 2026-07-18 00:12:21 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:12:21 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:12:21 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:12:21 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:12:21 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:12:21 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:12:21 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:12:21 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) 2026-07-18 00:12:21 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116905 Jy 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000041 +/- 0.000777 arcsec 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ --- ra: 127.999941 +/- 0.000127 pixels 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ --- dec: 127.999954 +/- 0.000097 pixels 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:12:21 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:12:21 INFO imstat::::casa ########################################## 2026-07-18 00:12:21 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:12:21 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 ) 2026-07-18 00:12:21 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:12:21 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:12:21 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:12:21 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:12:21 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:12:21 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) 2026-07-18 00:12:21 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:12:21 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:12:21 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:12:21 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:12:21 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-07-18 00:12:21 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-07-18 00:12:21 INFO imstat:::: Values --- 2026-07-18 00:12:21 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:12:21 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:12:21 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:12:21 INFO imstat:::: -- minimum value [min]: -7.78774e-05 Jy/beam 2026-07-18 00:12:21 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:12:21 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:12:21 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:12:21 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:12:21 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:12:21 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:12:21 INFO imstat:::: Statistics --- 2026-07-18 00:12:21 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:12:21 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:12:21 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:12:21 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:12:21 INFO imstat:::: -- Median of the pixel values [median]: -1.86532e-05 Jy/beam 2026-07-18 00:12:21 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73779e-05 Jy/beam 2026-07-18 00:12:21 INFO imstat:::: -- IQR [quartile]: 3.5701e-05 Jy/beam 2026-07-18 00:12:21 INFO imstat:::: -- First quartile [q1]: -3.45356e-05 Jy/beam 2026-07-18 00:12:21 INFO imstat:::: -- Third quartile [q3]: 1.16544e-06 Jy/beam 2026-07-18 00:12:21 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:12:21 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:12:21 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:12:21 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:12:21 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:12:21 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:12:21 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 2026-07-18 00:12:21 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:12:20.943362 End time: 2026-07-18 00:12:20.964460 2026-07-18 00:12:21 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:12:21 INFO imstat::::casa ########################################## 2026-07-18 00:12:21 INFO phaseshift::::casa ########################################## 2026-07-18 00:12:21 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:12:21 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 6.352706472deg' ) 2026-07-18 00:12:21 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:12:21 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:12:21 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:12:21 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:12:21 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:12:21 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:12:21 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:12:21 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:12:21 INFO MSTransformManager::open Select data 2026-07-18 00:12:21 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:12:24 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:12:24 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 6.352706472deg' successfully parsed 2026-07-18 00:12:24 INFO phaseshift::::casa Shift phase center 2026-07-18 00:12:25 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:12:25 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:12:20.977569 End time: 2026-07-18 00:12:25.112174 2026-07-18 00:12:25 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:12:25 INFO phaseshift::::casa ########################################## 2026-07-18 00:12:25 INFO tclean::::casa ########################################## 2026-07-18 00:12:25 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:12:25 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, 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 ) 2026-07-18 00:12:25 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:12:25 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:12:25 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:12:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:12:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:12:25 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:12:25 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:12:25 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:12:25 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:12:25 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:12:25 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:12:25 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:12:26 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:12:26 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021931 2026-07-18 00:12:26 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:12:27 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:12:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:12:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:12:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:12:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:12:28 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:12:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:12:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:12:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:12:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:12:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:12:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:12:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:12:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:12:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:12:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:12:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:12:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:12:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:12:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:12:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:12:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:12:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:12:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:12:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:12:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:12:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:12:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:12:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:12:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:12:35 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:12:35 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:12:35 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:12:36 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:12:36 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:12:38 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:12:25.144655 End time: 2026-07-18 00:12:37.516895 2026-07-18 00:12:38 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:12:38 INFO tclean::::casa ########################################## 2026-07-18 00:12:38 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:12:38 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:12:38 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) 2026-07-18 00:12:38 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:12:38 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:12:38 2026****** 2026-07-18 00:12:38 INFO ImageFitter::fit+ 2026-07-18 00:12:38 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:12:38 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:12:38 INFO ImageFitter::fit+ --- region: 2026-07-18 00:12:38 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:12:38 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:12:38 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:12:38 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:12:38 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:12:38 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:12:38 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:12:38 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) 2026-07-18 00:12:38 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000006 +/- 0.000777 arcsec 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ --- ra: 128.000007 +/- 0.000127 pixels 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ --- dec: 127.999994 +/- 0.000097 pixels 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:12:38 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:12:38 INFO imstat::::casa ########################################## 2026-07-18 00:12:38 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:12:38 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 ) 2026-07-18 00:12:38 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:12:38 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:12:38 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:12:38 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:12:38 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:12:38 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) 2026-07-18 00:12:38 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:12:38 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:12:38 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:12:38 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:12:38 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:12:38 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:12:38 INFO imstat:::: Values --- 2026-07-18 00:12:38 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:12:38 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:12:38 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:12:38 INFO imstat:::: -- minimum value [min]: -7.77798e-05 Jy/beam 2026-07-18 00:12:38 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:12:38 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:12:38 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:12:38 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:12:38 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:12:38 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:12:38 INFO imstat:::: Statistics --- 2026-07-18 00:12:38 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:12:38 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:12:38 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:12:38 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:12:38 INFO imstat:::: -- Median of the pixel values [median]: -1.86675e-05 Jy/beam 2026-07-18 00:12:38 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73645e-05 Jy/beam 2026-07-18 00:12:38 INFO imstat:::: -- IQR [quartile]: 3.56077e-05 Jy/beam 2026-07-18 00:12:38 INFO imstat:::: -- First quartile [q1]: -3.45073e-05 Jy/beam 2026-07-18 00:12:38 INFO imstat:::: -- Third quartile [q3]: 1.1004e-06 Jy/beam 2026-07-18 00:12:38 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:12:38 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:12:38 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:12:38 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:12:38 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:12:38 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:12:38 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 2026-07-18 00:12:38 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:12:37.573264 End time: 2026-07-18 00:12:37.594383 2026-07-18 00:12:38 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:12:38 INFO imstat::::casa ########################################## 2026-07-18 00:12:38 INFO phaseshift::::casa ########################################## 2026-07-18 00:12:38 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:12:38 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 0.110875644rad' ) 2026-07-18 00:12:38 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:12:38 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:12:38 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:12:38 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:12:38 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:12:38 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:12:38 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:12:38 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:12:38 INFO MSTransformManager::open Select data 2026-07-18 00:12:38 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:12:41 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:12:41 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 0.110875644rad' successfully parsed 2026-07-18 00:12:41 INFO phaseshift::::casa Shift phase center 2026-07-18 00:12:42 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:12:42 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:12:37.607735 End time: 2026-07-18 00:12:41.623649 2026-07-18 00:12:42 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:12:42 INFO phaseshift::::casa ########################################## 2026-07-18 00:12:42 INFO tclean::::casa ########################################## 2026-07-18 00:12:42 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:12:42 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, 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 ) 2026-07-18 00:12:42 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:12:42 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:12:42 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:12:42 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:12:42 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:12:42 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:12:42 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:12:42 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:12:42 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:12:42 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:12:42 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:12:42 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:12:43 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:12:43 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020658 2026-07-18 00:12:43 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:12:43 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:12:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:12:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:12:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:12:45 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:12:45 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:12:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:12:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:12:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:12:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:12:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:12:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:12:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:12:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:12:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:12:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:12:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:12:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:12:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:12:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:12:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:12:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:12:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:12:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:12:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:12:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:12:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:12:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:12:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:12:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:12:51 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:12:51 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:12:51 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:12:51 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:12:52 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:12:53 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:12:41.653234 End time: 2026-07-18 00:12:52.883181 2026-07-18 00:12:53 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:12:53 INFO tclean::::casa ########################################## 2026-07-18 00:12:53 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:12:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:12:53 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) 2026-07-18 00:12:53 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:12:53 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:12:53 2026****** 2026-07-18 00:12:53 INFO ImageFitter::fit+ 2026-07-18 00:12:53 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:12:53 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:12:53 INFO ImageFitter::fit+ --- region: 2026-07-18 00:12:53 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:12:53 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:12:53 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:12:53 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:12:53 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:12:53 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:12:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:12:53 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) 2026-07-18 00:12:53 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000002 +/- 0.000777 arcsec 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ --- ra: 128.000014 +/- 0.000127 pixels 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ --- dec: 127.999998 +/- 0.000097 pixels 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:12:53 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:12:53 INFO imstat::::casa ########################################## 2026-07-18 00:12:53 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:12:53 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 ) 2026-07-18 00:12:53 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:12:53 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:12:53 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:12:53 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:12:53 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:12:53 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) 2026-07-18 00:12:53 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:12:53 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:12:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:12:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:12:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:12:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:12:53 INFO imstat:::: Values --- 2026-07-18 00:12:53 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:12:53 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:12:53 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:12:53 INFO imstat:::: -- minimum value [min]: -7.77816e-05 Jy/beam 2026-07-18 00:12:53 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:12:53 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-07-18 00:12:53 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:12:53 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-07-18 00:12:53 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:12:53 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:12:53 INFO imstat:::: Statistics --- 2026-07-18 00:12:53 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:12:53 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:12:53 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:12:53 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:12:53 INFO imstat:::: -- Median of the pixel values [median]: -1.8676e-05 Jy/beam 2026-07-18 00:12:53 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73584e-05 Jy/beam 2026-07-18 00:12:53 INFO imstat:::: -- IQR [quartile]: 3.56038e-05 Jy/beam 2026-07-18 00:12:53 INFO imstat:::: -- First quartile [q1]: -3.45104e-05 Jy/beam 2026-07-18 00:12:53 INFO imstat:::: -- Third quartile [q3]: 1.09331e-06 Jy/beam 2026-07-18 00:12:53 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:12:53 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:12:53 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:12:53 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:12:53 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:12:53 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:12:53 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 2026-07-18 00:12:53 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:12:52.950903 End time: 2026-07-18 00:12:52.973133 2026-07-18 00:12:53 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:12:53 INFO imstat::::casa ########################################## 2026-07-18 00:12:53 INFO phaseshift::::casa ########################################## 2026-07-18 00:12:53 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:12:53 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 39d58m05.8512' ) 2026-07-18 00:12:53 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:12:53 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:12:53 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:12:53 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:12:53 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:12:53 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:12:53 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:12:53 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:12:53 INFO MSTransformManager::open Select data 2026-07-18 00:12:53 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:12:56 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:12:56 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 39d58m05.8512' successfully parsed 2026-07-18 00:12:56 INFO phaseshift::::casa Shift phase center 2026-07-18 00:12:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:12:57 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:12:52.987748 End time: 2026-07-18 00:12:57.051983 2026-07-18 00:12:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:12:57 INFO phaseshift::::casa ########################################## 2026-07-18 00:12:57 INFO tclean::::casa ########################################## 2026-07-18 00:12:57 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:12:57 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, 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 ) 2026-07-18 00:12:57 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:12:57 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:12:57 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:12:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:12:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:12:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:12:57 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:12:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:12:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:12:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:12:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:12:57 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:12:59 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:12:59 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021549 2026-07-18 00:12:59 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:12:59 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:13:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:13:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:13:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:13:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:13:01 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:13:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:13:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:13:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:13:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:13:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:13:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:13:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:13:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:13:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:13:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:13:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:13:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:13:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:13:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:13:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:13:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:13:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:13:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:13:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:13:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:13:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:13:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:13:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:13:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:13:07 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:13:07 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:13:07 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:13:08 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:13:08 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:13:10 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:12:57.081493 End time: 2026-07-18 00:13:09.907806 2026-07-18 00:13:10 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:13:10 INFO tclean::::casa ########################################## 2026-07-18 00:13:10 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:13:10 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:13:10 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) 2026-07-18 00:13:10 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:13:10 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:13:10 2026****** 2026-07-18 00:13:10 INFO ImageFitter::fit+ 2026-07-18 00:13:10 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:13:10 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:13:10 INFO ImageFitter::fit+ --- region: 2026-07-18 00:13:10 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:13:10 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:13:10 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:13:10 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:13:10 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:13:10 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:13:10 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:13:10 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) 2026-07-18 00:13:10 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:13:10 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:13:10 INFO imstat::::casa ########################################## 2026-07-18 00:13:10 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:13:10 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 ) 2026-07-18 00:13:10 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:13:10 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:13:10 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:13:10 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:13:10 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:13:10 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) 2026-07-18 00:13:10 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:13:10 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:13:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:13:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:13:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:13:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:13:10 INFO imstat:::: Values --- 2026-07-18 00:13:10 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:13:10 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:13:10 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:13:10 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-07-18 00:13:10 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:13:10 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:13:10 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:13:10 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:13:10 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:13:10 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:13:10 INFO imstat:::: Statistics --- 2026-07-18 00:13:10 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:13:10 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:13:10 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:13:10 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:13:10 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-07-18 00:13:10 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-07-18 00:13:10 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-07-18 00:13:10 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-07-18 00:13:10 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-07-18 00:13:10 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:13:10 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:13:10 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:13:10 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:13:10 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:13:10 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:13:10 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 2026-07-18 00:13:10 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:13:09.971376 End time: 2026-07-18 00:13:09.995515 2026-07-18 00:13:10 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:13:10 INFO imstat::::casa ########################################## 2026-07-18 00:13:10 INFO phaseshift::::casa ########################################## 2026-07-18 00:13:10 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:13:10 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' ) 2026-07-18 00:13:10 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:13:10 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:13:10 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:13:10 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:13:10 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:13:10 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:13:10 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:13:10 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:13:10 INFO MSTransformManager::open Select data 2026-07-18 00:13:10 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:13:13 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 ".". 2026-07-18 00:13:13 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 02:39:52.3901' successfully parsed 2026-07-18 00:13:13 INFO phaseshift::::casa Shift phase center 2026-07-18 00:13:14 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:13:14 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:13:10.008562 End time: 2026-07-18 00:13:13.618448 2026-07-18 00:13:14 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:13:14 INFO phaseshift::::casa ########################################## 2026-07-18 00:13:14 INFO tclean::::casa ########################################## 2026-07-18 00:13:14 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:13:14 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, 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 ) 2026-07-18 00:13:14 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:13:14 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:13:14 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:13:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:13:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:13:14 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:13:14 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:13:14 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:13:14 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:13:14 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:13:14 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:13:14 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:13:15 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:13:15 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021408 2026-07-18 00:13:15 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:13:15 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:13:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:13:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:13:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:13:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:13:17 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:13:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:13:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:13:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:13:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:13:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:13:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:13:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:13:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:13:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:13:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:13:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:13:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:13:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:13:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:13:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:13:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:13:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:13:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:13:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:13:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:13:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:13:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:13:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:13:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:13:24 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:13:24 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:13:24 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:13:24 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:13:25 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:13:26 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:13:13.648799 End time: 2026-07-18 00:13:26.108231 2026-07-18 00:13:26 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:13:26 INFO tclean::::casa ########################################## 2026-07-18 00:13:26 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:13:26 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:13:26 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) 2026-07-18 00:13:26 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:13:26 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:13:26 2026****** 2026-07-18 00:13:26 INFO ImageFitter::fit+ 2026-07-18 00:13:26 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:13:26 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:13:26 INFO ImageFitter::fit+ --- region: 2026-07-18 00:13:26 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:13:26 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:13:26 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:13:26 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:13:26 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:13:26 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:13:26 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:13:26 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) 2026-07-18 00:13:26 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011688 Jy 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:13:26 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:13:26 INFO imstat::::casa ########################################## 2026-07-18 00:13:26 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:13:26 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 ) 2026-07-18 00:13:26 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:13:26 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:13:26 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:13:26 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:13:26 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:13:26 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) 2026-07-18 00:13:26 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:13:26 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:13:26 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:13:26 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:13:26 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-07-18 00:13:26 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-07-18 00:13:26 INFO imstat:::: Values --- 2026-07-18 00:13:26 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:13:26 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:13:26 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:13:26 INFO imstat:::: -- minimum value [min]: -7.78225e-05 Jy/beam 2026-07-18 00:13:26 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:13:26 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:13:26 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:13:26 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:13:26 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:13:26 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:13:26 INFO imstat:::: Statistics --- 2026-07-18 00:13:26 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:13:26 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:13:26 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:13:26 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:13:26 INFO imstat:::: -- Median of the pixel values [median]: -1.86781e-05 Jy/beam 2026-07-18 00:13:26 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73751e-05 Jy/beam 2026-07-18 00:13:26 INFO imstat:::: -- IQR [quartile]: 3.56365e-05 Jy/beam 2026-07-18 00:13:26 INFO imstat:::: -- First quartile [q1]: -3.45278e-05 Jy/beam 2026-07-18 00:13:26 INFO imstat:::: -- Third quartile [q3]: 1.10869e-06 Jy/beam 2026-07-18 00:13:26 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:13:26 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:13:26 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:13:26 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:13:26 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:13:26 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:13:26 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 2026-07-18 00:13:26 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:13:26.176313 End time: 2026-07-18 00:13:26.196945 2026-07-18 00:13:26 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:13:26 INFO imstat::::casa ########################################## 2026-07-18 00:13:26 INFO phaseshift::::casa ########################################## 2026-07-18 00:13:26 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:13:26 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 39.968292000deg' ) 2026-07-18 00:13:26 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:13:26 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:13:26 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:13:26 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:13:26 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:13:26 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:13:26 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:13:26 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:13:26 INFO MSTransformManager::open Select data 2026-07-18 00:13:26 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:13:29 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:13:29 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 39.968292000deg' successfully parsed 2026-07-18 00:13:29 INFO phaseshift::::casa Shift phase center 2026-07-18 00:13:30 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:13:30 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:13:26.209931 End time: 2026-07-18 00:13:30.214187 2026-07-18 00:13:30 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:13:30 INFO phaseshift::::casa ########################################## 2026-07-18 00:13:30 INFO tclean::::casa ########################################## 2026-07-18 00:13:30 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:13:30 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, 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 ) 2026-07-18 00:13:30 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:13:30 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:13:30 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:13:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:13:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:13:30 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:13:30 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:13:30 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:13:30 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:13:30 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:13:30 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:13:30 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:13:31 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:13:31 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021871 2026-07-18 00:13:31 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:13:32 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:13:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:13:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:13:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:13:33 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:13:33 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:13:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:13:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:13:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:13:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:13:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:13:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:13:35 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:13:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:13:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:13:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:13:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:13:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:13:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:13:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:13:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:13:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:13:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:13:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:13:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:13:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:13:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:13:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:13:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:13:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:13:39 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:13:39 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:13:39 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:13:40 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:13:40 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:13:41 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:13:30.246069 End time: 2026-07-18 00:13:41.487885 2026-07-18 00:13:41 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:13:41 INFO tclean::::casa ########################################## 2026-07-18 00:13:42 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:13:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:13:42 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) 2026-07-18 00:13:42 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:13:42 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:13:42 2026****** 2026-07-18 00:13:42 INFO ImageFitter::fit+ 2026-07-18 00:13:42 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:13:42 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:13:42 INFO ImageFitter::fit+ --- region: 2026-07-18 00:13:42 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:13:42 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:13:42 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:13:42 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:13:42 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:13:42 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:13:42 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:13:42 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) 2026-07-18 00:13:42 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:13:42 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:13:42 INFO imstat::::casa ########################################## 2026-07-18 00:13:42 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:13:42 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 ) 2026-07-18 00:13:42 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:13:42 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:13:42 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:13:42 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:13:42 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:13:42 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) 2026-07-18 00:13:42 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:13:42 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:13:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:13:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:13:42 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:13:42 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:13:42 INFO imstat:::: Values --- 2026-07-18 00:13:42 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:13:42 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:13:42 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:13:42 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-07-18 00:13:42 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:13:42 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:13:42 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:13:42 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:13:42 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:13:42 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:13:42 INFO imstat:::: Statistics --- 2026-07-18 00:13:42 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:13:42 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:13:42 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:13:42 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:13:42 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-07-18 00:13:42 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-07-18 00:13:42 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-07-18 00:13:42 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-07-18 00:13:42 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-07-18 00:13:42 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:13:42 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:13:42 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:13:42 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:13:42 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:13:42 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:13:42 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 2026-07-18 00:13:42 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:13:41.545914 End time: 2026-07-18 00:13:41.567746 2026-07-18 00:13:42 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:13:42 INFO imstat::::casa ########################################## 2026-07-18 00:13:42 INFO phaseshift::::casa ########################################## 2026-07-18 00:13:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:13:42 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 0.697578292rad' ) 2026-07-18 00:13:42 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:13:42 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:13:42 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:13:42 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:13:42 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:13:42 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:13:42 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:13:42 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:13:42 INFO MSTransformManager::open Select data 2026-07-18 00:13:42 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:13:45 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:13:45 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 0.697578292rad' successfully parsed 2026-07-18 00:13:45 INFO phaseshift::::casa Shift phase center 2026-07-18 00:13:46 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:13:46 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:13:41.581928 End time: 2026-07-18 00:13:46.049203 2026-07-18 00:13:46 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:13:46 INFO phaseshift::::casa ########################################## 2026-07-18 00:13:46 INFO tclean::::casa ########################################## 2026-07-18 00:13:46 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:13:46 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, 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 ) 2026-07-18 00:13:46 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:13:46 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:13:46 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:13:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:13:46 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:13:46 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:13:46 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:13:46 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:13:46 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:13:46 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:13:46 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:13:46 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:13:47 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:13:48 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022651 2026-07-18 00:13:48 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:13:48 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:13:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:13:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:13:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:13:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:13:50 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:13:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:13:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:13:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:13:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:13:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:13:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:13:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:13:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:13:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:13:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:13:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:13:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:13:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:13:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:13:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:13:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:13:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:13:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:13:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:13:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:13:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:13:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:13:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:13:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:13:55 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:13:55 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:13:55 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:13:56 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:13:56 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:13:58 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:13:46.078259 End time: 2026-07-18 00:13:57.600448 2026-07-18 00:13:58 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:13:58 INFO tclean::::casa ########################################## 2026-07-18 00:13:58 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:13:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:13:58 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) 2026-07-18 00:13:58 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:13:58 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:13:58 2026****** 2026-07-18 00:13:58 INFO ImageFitter::fit+ 2026-07-18 00:13:58 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:13:58 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:13:58 INFO ImageFitter::fit+ --- region: 2026-07-18 00:13:58 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:13:58 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:13:58 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:13:58 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:13:58 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:13:58 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:13:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:13:58 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) 2026-07-18 00:13:58 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:13:58 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:13:58 INFO imstat::::casa ########################################## 2026-07-18 00:13:58 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:13:58 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 ) 2026-07-18 00:13:58 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:13:58 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:13:58 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:13:58 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:13:58 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:13:58 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) 2026-07-18 00:13:58 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:13:58 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:13:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:13:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:13:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:13:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:13:58 INFO imstat:::: Values --- 2026-07-18 00:13:58 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:13:58 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:13:58 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:13:58 INFO imstat:::: -- minimum value [min]: -7.7789e-05 Jy/beam 2026-07-18 00:13:58 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:13:58 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:13:58 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:13:58 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:13:58 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:13:58 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:13:58 INFO imstat:::: Statistics --- 2026-07-18 00:13:58 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:13:58 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:13:58 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:13:58 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:13:58 INFO imstat:::: -- Median of the pixel values [median]: -1.86647e-05 Jy/beam 2026-07-18 00:13:58 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73649e-05 Jy/beam 2026-07-18 00:13:58 INFO imstat:::: -- IQR [quartile]: 3.56182e-05 Jy/beam 2026-07-18 00:13:58 INFO imstat:::: -- First quartile [q1]: -3.45079e-05 Jy/beam 2026-07-18 00:13:58 INFO imstat:::: -- Third quartile [q3]: 1.11022e-06 Jy/beam 2026-07-18 00:13:58 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:13:58 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:13:58 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:13:58 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:13:58 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:13:58 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:13:58 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 2026-07-18 00:13:58 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:13:57.653948 End time: 2026-07-18 00:13:57.674290 2026-07-18 00:13:58 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:13:58 INFO imstat::::casa ########################################## 2026-07-18 00:13:58 INFO phaseshift::::casa ########################################## 2026-07-18 00:13:58 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:13:58 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 39d58m05.8512' ) 2026-07-18 00:13:58 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:13:58 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:13:58 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:13:58 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:13:58 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:13:58 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:13:58 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:13:58 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:13:58 INFO MSTransformManager::open Select data 2026-07-18 00:13:58 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:14:01 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:14:01 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 39d58m05.8512' successfully parsed 2026-07-18 00:14:01 INFO phaseshift::::casa Shift phase center 2026-07-18 00:14:02 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:14:02 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:13:57.688448 End time: 2026-07-18 00:14:01.886799 2026-07-18 00:14:02 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:14:02 INFO phaseshift::::casa ########################################## 2026-07-18 00:14:02 INFO tclean::::casa ########################################## 2026-07-18 00:14:02 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:14:02 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, 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 ) 2026-07-18 00:14:02 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:14:02 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:14:02 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:14:02 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:14:02 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:14:02 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:14:02 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:14:02 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:14:02 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:14:02 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:14:02 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:14:02 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:14:03 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:14:03 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.019709 2026-07-18 00:14:03 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:14:03 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:14:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:14:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:14:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:14:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:14:05 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:14:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:14:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:14:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:14:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:14:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:14:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:14:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:14:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:14:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:14:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:14:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:14:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:14:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:14:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:14:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:14:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:14:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:14:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:14:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:14:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:14:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:14:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:14:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:14:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:14:11 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:14:11 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:14:11 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:14:12 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:14:12 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:14:14 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:14:01.916793 End time: 2026-07-18 00:14:13.724776 2026-07-18 00:14:14 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:14:14 INFO tclean::::casa ########################################## 2026-07-18 00:14:14 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:14:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:14:14 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) 2026-07-18 00:14:14 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:14:14 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:14:14 2026****** 2026-07-18 00:14:14 INFO ImageFitter::fit+ 2026-07-18 00:14:14 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:14:14 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:14:14 INFO ImageFitter::fit+ --- region: 2026-07-18 00:14:14 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:14:14 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:14:14 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:14:14 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:14:14 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:14:14 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:14:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:14:14 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) 2026-07-18 00:14:14 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:14:14 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:14:14 INFO imstat::::casa ########################################## 2026-07-18 00:14:14 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:14:14 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 ) 2026-07-18 00:14:14 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:14:14 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:14:14 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:14:14 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:14:14 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:14:14 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) 2026-07-18 00:14:14 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:14:14 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:14:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:14:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:14:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:14:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:14:14 INFO imstat:::: Values --- 2026-07-18 00:14:14 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:14:14 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:14:14 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:14:14 INFO imstat:::: -- minimum value [min]: -7.77773e-05 Jy/beam 2026-07-18 00:14:14 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:14:14 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-07-18 00:14:14 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:14:14 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-07-18 00:14:14 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:14:14 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:14:14 INFO imstat:::: Statistics --- 2026-07-18 00:14:14 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:14:14 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:14:14 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:14:14 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:14:14 INFO imstat:::: -- Median of the pixel values [median]: -1.86786e-05 Jy/beam 2026-07-18 00:14:14 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73603e-05 Jy/beam 2026-07-18 00:14:14 INFO imstat:::: -- IQR [quartile]: 3.56014e-05 Jy/beam 2026-07-18 00:14:14 INFO imstat:::: -- First quartile [q1]: -3.45038e-05 Jy/beam 2026-07-18 00:14:14 INFO imstat:::: -- Third quartile [q3]: 1.09758e-06 Jy/beam 2026-07-18 00:14:14 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:14:14 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:14:14 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:14:14 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:14:14 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:14:14 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:14:14 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 2026-07-18 00:14:14 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:14:13.792462 End time: 2026-07-18 00:14:13.812391 2026-07-18 00:14:14 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:14:14 INFO imstat::::casa ########################################## 2026-07-18 00:14:14 INFO phaseshift::::casa ########################################## 2026-07-18 00:14:14 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:14:14 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 19:52:05.6524 02:39:52.3901' ) 2026-07-18 00:14:14 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:14:14 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:14:14 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:14:14 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:14:14 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:14:14 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:14:14 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:14:14 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:14:14 INFO MSTransformManager::open Select data 2026-07-18 00:14:14 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:14:17 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 ".". 2026-07-18 00:14:17 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 02:39:52.3901' successfully parsed 2026-07-18 00:14:17 INFO phaseshift::::casa Shift phase center 2026-07-18 00:14:18 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:14:18 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:14:13.825450 End time: 2026-07-18 00:14:17.904321 2026-07-18 00:14:18 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:14:18 INFO phaseshift::::casa ########################################## 2026-07-18 00:14:18 INFO tclean::::casa ########################################## 2026-07-18 00:14:18 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:14:18 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, 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 ) 2026-07-18 00:14:18 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:14:18 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:14:18 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:14:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:14:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:14:18 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:14:18 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:14:18 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:14:18 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:14:18 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:14:18 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:14:18 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:14:19 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:14:19 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021046 2026-07-18 00:14:19 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:14:19 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:14:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:14:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:14:22 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:14:22 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:14:22 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:14:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:14:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:14:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:14:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:14:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:14:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:14:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:14:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:14:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:14:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:14:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:14:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:14:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:14:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:14:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:14:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:14:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:14:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:14:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:14:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:14:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:14:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:14:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:14:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:14:28 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:14:28 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:14:28 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:14:29 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:14:29 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:14:30 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:14:17.934331 End time: 2026-07-18 00:14:30.232354 2026-07-18 00:14:30 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:14:30 INFO tclean::::casa ########################################## 2026-07-18 00:14:30 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:14:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:14:30 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) 2026-07-18 00:14:30 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:14:30 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:14:30 2026****** 2026-07-18 00:14:30 INFO ImageFitter::fit+ 2026-07-18 00:14:30 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:14:30 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:14:30 INFO ImageFitter::fit+ --- region: 2026-07-18 00:14:30 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:14:30 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:14:30 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:14:30 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:14:30 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:14:30 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:14:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:14:30 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) 2026-07-18 00:14:30 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116878 Jy 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126494 Jy 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ --- ra: 128.000008 +/- 0.000127 pixels 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:14:30 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:14:30 INFO imstat::::casa ########################################## 2026-07-18 00:14:30 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:14:30 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 ) 2026-07-18 00:14:30 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:14:30 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:14:30 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:14:30 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:14:30 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:14:30 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) 2026-07-18 00:14:30 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:14:30 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:14:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:14:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:14:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-07-18 00:14:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-07-18 00:14:30 INFO imstat:::: Values --- 2026-07-18 00:14:30 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:14:30 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:14:30 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:14:30 INFO imstat:::: -- minimum value [min]: -7.78143e-05 Jy/beam 2026-07-18 00:14:30 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:14:30 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:14:30 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:14:30 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:14:30 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:14:30 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:14:30 INFO imstat:::: Statistics --- 2026-07-18 00:14:30 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:14:30 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:14:30 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:14:30 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:14:30 INFO imstat:::: -- Median of the pixel values [median]: -1.86838e-05 Jy/beam 2026-07-18 00:14:30 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73769e-05 Jy/beam 2026-07-18 00:14:30 INFO imstat:::: -- IQR [quartile]: 3.5634e-05 Jy/beam 2026-07-18 00:14:30 INFO imstat:::: -- First quartile [q1]: -3.45216e-05 Jy/beam 2026-07-18 00:14:30 INFO imstat:::: -- Third quartile [q3]: 1.1124e-06 Jy/beam 2026-07-18 00:14:30 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:14:30 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:14:30 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:14:30 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:14:30 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:14:30 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:14:30 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 2026-07-18 00:14:30 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:14:30.297708 End time: 2026-07-18 00:14:30.319113 2026-07-18 00:14:30 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:14:30 INFO imstat::::casa ########################################## 2026-07-18 00:14:30 INFO phaseshift::::casa ########################################## 2026-07-18 00:14:30 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:14:30 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 39.968292000deg' ) 2026-07-18 00:14:30 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:14:30 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:14:30 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:14:30 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:14:30 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:14:30 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:14:30 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:14:30 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:14:30 INFO MSTransformManager::open Select data 2026-07-18 00:14:30 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:14:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:14:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 39.968292000deg' successfully parsed 2026-07-18 00:14:33 INFO phaseshift::::casa Shift phase center 2026-07-18 00:14:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:14:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:14:30.333903 End time: 2026-07-18 00:14:34.204223 2026-07-18 00:14:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:14:34 INFO phaseshift::::casa ########################################## 2026-07-18 00:14:34 INFO tclean::::casa ########################################## 2026-07-18 00:14:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:14:34 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, 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 ) 2026-07-18 00:14:34 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:14:34 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:14:34 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:14:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:14:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:14:34 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:14:34 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:14:34 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:14:34 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:14:34 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:14:34 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:14:34 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:14:36 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:14:36 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023871 2026-07-18 00:14:36 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:14:36 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:14:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:14:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:14:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:14:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:14:38 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:14:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:14:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:14:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:14:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:14:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:14:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:14:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:14:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:14:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:14:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:14:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:14:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:14:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:14:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:14:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:14:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:14:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:14:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:14:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:14:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:14:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:14:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:14:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:14:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:14:43 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:14:43 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:14:43 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:14:44 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:14:44 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:14:46 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:14:34.235479 End time: 2026-07-18 00:14:45.630198 2026-07-18 00:14:46 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:14:46 INFO tclean::::casa ########################################## 2026-07-18 00:14:46 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:14:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:14:46 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) 2026-07-18 00:14:46 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:14:46 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:14:46 2026****** 2026-07-18 00:14:46 INFO ImageFitter::fit+ 2026-07-18 00:14:46 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:14:46 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:14:46 INFO ImageFitter::fit+ --- region: 2026-07-18 00:14:46 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:14:46 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:14:46 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:14:46 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:14:46 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:14:46 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:14:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:14:46 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) 2026-07-18 00:14:46 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:14:46 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:14:46 INFO imstat::::casa ########################################## 2026-07-18 00:14:46 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:14:46 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 ) 2026-07-18 00:14:46 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:14:46 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:14:46 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:14:46 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:14:46 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:14:46 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) 2026-07-18 00:14:46 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:14:46 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:14:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:14:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:14:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:14:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:14:46 INFO imstat:::: Values --- 2026-07-18 00:14:46 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:14:46 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:14:46 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:14:46 INFO imstat:::: -- minimum value [min]: -7.77773e-05 Jy/beam 2026-07-18 00:14:46 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:14:46 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-07-18 00:14:46 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:14:46 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-07-18 00:14:46 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:14:46 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:14:46 INFO imstat:::: Statistics --- 2026-07-18 00:14:46 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:14:46 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:14:46 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:14:46 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:14:46 INFO imstat:::: -- Median of the pixel values [median]: -1.86786e-05 Jy/beam 2026-07-18 00:14:46 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73603e-05 Jy/beam 2026-07-18 00:14:46 INFO imstat:::: -- IQR [quartile]: 3.56014e-05 Jy/beam 2026-07-18 00:14:46 INFO imstat:::: -- First quartile [q1]: -3.45038e-05 Jy/beam 2026-07-18 00:14:46 INFO imstat:::: -- Third quartile [q3]: 1.09758e-06 Jy/beam 2026-07-18 00:14:46 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:14:46 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:14:46 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:14:46 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:14:46 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:14:46 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:14:46 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 2026-07-18 00:14:46 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:14:45.685682 End time: 2026-07-18 00:14:45.705502 2026-07-18 00:14:46 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:14:46 INFO imstat::::casa ########################################## 2026-07-18 00:14:46 INFO phaseshift::::casa ########################################## 2026-07-18 00:14:46 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:14:46 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 0.697578292rad' ) 2026-07-18 00:14:46 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:14:46 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:14:46 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:14:46 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:14:46 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:14:46 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:14:46 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:14:46 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:14:46 INFO MSTransformManager::open Select data 2026-07-18 00:14:46 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:14:49 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:14:49 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 0.697578292rad' successfully parsed 2026-07-18 00:14:49 INFO phaseshift::::casa Shift phase center 2026-07-18 00:14:50 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:14:50 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:14:45.718396 End time: 2026-07-18 00:14:49.717341 2026-07-18 00:14:50 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:14:50 INFO phaseshift::::casa ########################################## 2026-07-18 00:14:50 INFO tclean::::casa ########################################## 2026-07-18 00:14:50 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:14:50 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, 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 ) 2026-07-18 00:14:50 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:14:50 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:14:50 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:14:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:14:50 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:14:50 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:14:50 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:14:50 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:14:50 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:14:50 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:14:50 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:14:50 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:14:51 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:14:51 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024326 2026-07-18 00:14:51 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:14:51 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:14:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:14:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:14:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:14:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:14:53 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:14:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:14:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:14:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:14:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:14:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:14:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:14:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:14:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:14:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:14:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:14:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:14:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:14:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:14:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:14:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:14:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:14:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:14:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:14:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:14:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:14:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:14:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:14:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:14:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:14:59 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:14:59 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:14:59 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:15:00 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:15:00 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:15:01 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:14:49.746829 End time: 2026-07-18 00:15:01.203131 2026-07-18 00:15:01 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:15:01 INFO tclean::::casa ########################################## 2026-07-18 00:15:01 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:15:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:15:01 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) 2026-07-18 00:15:01 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:15:01 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:15:01 2026****** 2026-07-18 00:15:01 INFO ImageFitter::fit+ 2026-07-18 00:15:01 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:15:01 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:15:01 INFO ImageFitter::fit+ --- region: 2026-07-18 00:15:01 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:15:01 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:15:01 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:15:01 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:15:01 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:15:01 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:15:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:15:01 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) 2026-07-18 00:15:01 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126487 Jy 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:15:01 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:15:01 INFO imstat::::casa ########################################## 2026-07-18 00:15:01 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:15:01 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 ) 2026-07-18 00:15:01 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:15:01 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:15:01 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:15:01 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:15:01 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:15:01 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) 2026-07-18 00:15:01 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:15:01 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:15:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:15:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:15:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:15:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:15:01 INFO imstat:::: Values --- 2026-07-18 00:15:01 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:15:01 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:15:01 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:15:01 INFO imstat:::: -- minimum value [min]: -7.7781e-05 Jy/beam 2026-07-18 00:15:01 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:15:01 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:15:01 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:15:01 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:15:01 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:15:01 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:15:01 INFO imstat:::: Statistics --- 2026-07-18 00:15:01 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:15:01 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:15:01 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:15:01 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:15:01 INFO imstat:::: -- Median of the pixel values [median]: -1.86714e-05 Jy/beam 2026-07-18 00:15:01 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73593e-05 Jy/beam 2026-07-18 00:15:01 INFO imstat:::: -- IQR [quartile]: 3.56161e-05 Jy/beam 2026-07-18 00:15:01 INFO imstat:::: -- First quartile [q1]: -3.45125e-05 Jy/beam 2026-07-18 00:15:01 INFO imstat:::: -- Third quartile [q3]: 1.10364e-06 Jy/beam 2026-07-18 00:15:01 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:15:01 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:15:01 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:15:01 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:15:01 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:15:01 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:15:01 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 2026-07-18 00:15:01 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:15:01.258028 End time: 2026-07-18 00:15:01.278693 2026-07-18 00:15:01 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:15:01 INFO imstat::::casa ########################################## 2026-07-18 00:15:01 INFO phaseshift::::casa ########################################## 2026-07-18 00:15:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:15:01 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 39d58m05.8512' ) 2026-07-18 00:15:01 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:15:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:15:01 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:15:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:15:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:15:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:15:01 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:15:01 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:15:01 INFO MSTransformManager::open Select data 2026-07-18 00:15:01 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:15:04 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:15:04 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 39d58m05.8512' successfully parsed 2026-07-18 00:15:04 INFO phaseshift::::casa Shift phase center 2026-07-18 00:15:05 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:15:06 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:15:01.291621 End time: 2026-07-18 00:15:05.532647 2026-07-18 00:15:06 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:15:06 INFO phaseshift::::casa ########################################## 2026-07-18 00:15:06 INFO tclean::::casa ########################################## 2026-07-18 00:15:06 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:15:06 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, 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 ) 2026-07-18 00:15:06 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:15:06 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:15:06 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:15:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:15:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:15:06 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:15:06 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:15:06 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:15:06 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:15:06 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:15:06 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:15:06 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:15:07 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:15:07 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022495 2026-07-18 00:15:07 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:15:07 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:15:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:15:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:15:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:15:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:15:10 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:15:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:15:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:15:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:15:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:15:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:15:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:15:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:15:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:15:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:15:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:15:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:15:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:15:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:15:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:15:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:15:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:15:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:15:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:15:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:15:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:15:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:15:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:15:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:15:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:15:17 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:15:17 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:15:17 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:15:18 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:15:18 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:15:20 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:15:05.561767 End time: 2026-07-18 00:15:19.644569 2026-07-18 00:15:20 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:15:20 INFO tclean::::casa ########################################## 2026-07-18 00:15:20 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:15:20 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:15:20 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) 2026-07-18 00:15:20 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:15:20 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:15:20 2026****** 2026-07-18 00:15:20 INFO ImageFitter::fit+ 2026-07-18 00:15:20 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:15:20 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:15:20 INFO ImageFitter::fit+ --- region: 2026-07-18 00:15:20 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:15:20 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:15:20 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:15:20 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:15:20 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:15:20 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:15:20 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:15:20 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) 2026-07-18 00:15:20 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:15:20 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:15:20 INFO imstat::::casa ########################################## 2026-07-18 00:15:20 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:15:20 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 ) 2026-07-18 00:15:20 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:15:20 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:15:20 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:15:20 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:15:20 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:15:20 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) 2026-07-18 00:15:20 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:15:20 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:15:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:15:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:15:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:15:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:15:20 INFO imstat:::: Values --- 2026-07-18 00:15:20 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:15:20 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:15:20 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:15:20 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-07-18 00:15:20 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:15:20 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:15:20 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:15:20 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:15:20 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:15:20 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:15:20 INFO imstat:::: Statistics --- 2026-07-18 00:15:20 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:15:20 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:15:20 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:15:20 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:15:20 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-07-18 00:15:20 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-07-18 00:15:20 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-07-18 00:15:20 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-07-18 00:15:20 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-07-18 00:15:20 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:15:20 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:15:20 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:15:20 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:15:20 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:15:20 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:15:20 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 2026-07-18 00:15:20 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:15:19.703333 End time: 2026-07-18 00:15:19.726376 2026-07-18 00:15:20 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:15:20 INFO imstat::::casa ########################################## 2026-07-18 00:15:20 INFO phaseshift::::casa ########################################## 2026-07-18 00:15:20 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:15:20 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 298.023551625deg 02:39:52.3901' ) 2026-07-18 00:15:20 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:15:20 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:15:20 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:15:20 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:15:20 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:15:20 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:15:20 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:15:20 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:15:20 INFO MSTransformManager::open Select data 2026-07-18 00:15:20 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:15:23 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 ".". 2026-07-18 00:15:23 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 02:39:52.3901' successfully parsed 2026-07-18 00:15:23 INFO phaseshift::::casa Shift phase center 2026-07-18 00:15:24 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:15:24 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:15:19.739548 End time: 2026-07-18 00:15:24.041769 2026-07-18 00:15:24 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:15:24 INFO phaseshift::::casa ########################################## 2026-07-18 00:15:24 INFO tclean::::casa ########################################## 2026-07-18 00:15:24 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:15:24 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, 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 ) 2026-07-18 00:15:24 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:15:24 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:15:24 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:15:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:15:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:15:24 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:15:24 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:15:24 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:15:24 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:15:24 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:15:24 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:15:24 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:15:26 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:15:26 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021469 2026-07-18 00:15:26 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:15:26 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:15:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:15:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:15:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:15:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:15:29 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:15:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:15:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:15:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:15:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:15:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:15:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:15:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:15:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:15:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:15:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:15:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:15:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:15:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:15:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:15:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:15:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:15:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:15:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:15:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:15:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:15:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:15:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:15:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:15:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:15:38 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:15:38 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:15:38 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:15:39 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:15:39 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:15:41 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:15:24.071485 End time: 2026-07-18 00:15:40.502872 2026-07-18 00:15:41 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:15:41 INFO tclean::::casa ########################################## 2026-07-18 00:15:41 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:15:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:15:41 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) 2026-07-18 00:15:41 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:15:41 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:15:41 2026****** 2026-07-18 00:15:41 INFO ImageFitter::fit+ 2026-07-18 00:15:41 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:15:41 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:15:41 INFO ImageFitter::fit+ --- region: 2026-07-18 00:15:41 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:15:41 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:15:41 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:15:41 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:15:41 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:15:41 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:15:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:15:41 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) 2026-07-18 00:15:41 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011688 Jy 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:15:41 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:15:41 INFO imstat::::casa ########################################## 2026-07-18 00:15:41 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:15:41 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 ) 2026-07-18 00:15:41 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:15:41 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:15:41 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:15:41 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:15:41 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:15:41 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) 2026-07-18 00:15:41 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:15:41 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:15:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:15:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:15:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-07-18 00:15:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-07-18 00:15:41 INFO imstat:::: Values --- 2026-07-18 00:15:41 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:15:41 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:15:41 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:15:41 INFO imstat:::: -- minimum value [min]: -7.78225e-05 Jy/beam 2026-07-18 00:15:41 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:15:41 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:15:41 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:15:41 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:15:41 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:15:41 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:15:41 INFO imstat:::: Statistics --- 2026-07-18 00:15:41 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:15:41 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:15:41 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:15:41 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:15:41 INFO imstat:::: -- Median of the pixel values [median]: -1.86781e-05 Jy/beam 2026-07-18 00:15:41 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73751e-05 Jy/beam 2026-07-18 00:15:41 INFO imstat:::: -- IQR [quartile]: 3.56365e-05 Jy/beam 2026-07-18 00:15:41 INFO imstat:::: -- First quartile [q1]: -3.45278e-05 Jy/beam 2026-07-18 00:15:41 INFO imstat:::: -- Third quartile [q3]: 1.10869e-06 Jy/beam 2026-07-18 00:15:41 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:15:41 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:15:41 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:15:41 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:15:41 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:15:41 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:15:41 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 2026-07-18 00:15:41 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:15:40.558379 End time: 2026-07-18 00:15:40.578956 2026-07-18 00:15:41 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:15:41 INFO imstat::::casa ########################################## 2026-07-18 00:15:41 INFO phaseshift::::casa ########################################## 2026-07-18 00:15:41 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:15:41 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 298.023551625deg 39.968292000deg' ) 2026-07-18 00:15:41 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:15:41 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:15:41 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:15:41 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:15:41 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:15:41 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:15:41 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:15:41 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:15:41 INFO MSTransformManager::open Select data 2026-07-18 00:15:41 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:15:44 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:15:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 39.968292000deg' successfully parsed 2026-07-18 00:15:44 INFO phaseshift::::casa Shift phase center 2026-07-18 00:15:45 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:15:45 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:15:40.591954 End time: 2026-07-18 00:15:45.179544 2026-07-18 00:15:45 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:15:45 INFO phaseshift::::casa ########################################## 2026-07-18 00:15:45 INFO tclean::::casa ########################################## 2026-07-18 00:15:45 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:15:45 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, 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 ) 2026-07-18 00:15:45 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:15:45 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:15:45 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:15:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:15:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:15:45 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:15:45 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:15:45 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:15:45 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:15:45 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:15:45 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:15:45 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:15:47 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:15:47 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021212 2026-07-18 00:15:47 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:15:47 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:15:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:15:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:15:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:15:50 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:15:50 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:15:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:15:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:15:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:15:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:15:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:15:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:15:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:15:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:15:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:15:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:15:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:15:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:15:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:15:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:15:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:15:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:15:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:15:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:15:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:15:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:15:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:15:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:15:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:15:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:15:56 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:15:56 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:15:56 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:15:57 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:15:58 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:15:59 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:15:45.210702 End time: 2026-07-18 00:15:58.879375 2026-07-18 00:15:59 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:15:59 INFO tclean::::casa ########################################## 2026-07-18 00:15:59 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:15:59 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:15:59 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) 2026-07-18 00:15:59 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:15:59 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:15:59 2026****** 2026-07-18 00:15:59 INFO ImageFitter::fit+ 2026-07-18 00:15:59 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:15:59 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:15:59 INFO ImageFitter::fit+ --- region: 2026-07-18 00:15:59 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:15:59 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:15:59 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:15:59 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:15:59 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:15:59 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:15:59 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:15:59 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) 2026-07-18 00:15:59 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:15:59 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:15:59 INFO imstat::::casa ########################################## 2026-07-18 00:15:59 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:15:59 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 ) 2026-07-18 00:15:59 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:15:59 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:15:59 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:15:59 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:15:59 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:15:59 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) 2026-07-18 00:15:59 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:15:59 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:15:59 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:15:59 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:15:59 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:15:59 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:15:59 INFO imstat:::: Values --- 2026-07-18 00:15:59 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:15:59 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:15:59 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:15:59 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-07-18 00:15:59 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:15:59 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:15:59 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:15:59 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:15:59 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:15:59 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:15:59 INFO imstat:::: Statistics --- 2026-07-18 00:15:59 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:15:59 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:15:59 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:15:59 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:15:59 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-07-18 00:15:59 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-07-18 00:15:59 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-07-18 00:15:59 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-07-18 00:15:59 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-07-18 00:15:59 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:15:59 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:15:59 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:15:59 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:15:59 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:15:59 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:15:59 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 2026-07-18 00:15:59 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:15:58.933908 End time: 2026-07-18 00:15:58.954006 2026-07-18 00:15:59 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:15:59 INFO imstat::::casa ########################################## 2026-07-18 00:15:59 INFO phaseshift::::casa ########################################## 2026-07-18 00:15:59 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:15:59 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' ) 2026-07-18 00:15:59 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:15:59 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:15:59 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:15:59 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:15:59 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:15:59 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:15:59 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:15:59 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:15:59 INFO MSTransformManager::open Select data 2026-07-18 00:15:59 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:16:03 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:16:03 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 0.697578292rad' successfully parsed 2026-07-18 00:16:03 INFO phaseshift::::casa Shift phase center 2026-07-18 00:16:04 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:16:04 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:15:58.967241 End time: 2026-07-18 00:16:04.401879 2026-07-18 00:16:04 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:16:04 INFO phaseshift::::casa ########################################## 2026-07-18 00:16:04 INFO tclean::::casa ########################################## 2026-07-18 00:16:04 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:16:04 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, 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 ) 2026-07-18 00:16:04 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:16:04 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:16:04 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:16:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:16:05 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:16:05 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:16:05 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:16:05 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:16:05 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:16:05 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:16:05 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:16:05 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:16:06 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:16:06 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020915 2026-07-18 00:16:06 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:16:06 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:16:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:16:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:16:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:16:09 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:16:09 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:16:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:16:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:16:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:16:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:16:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:16:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:16:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:16:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:16:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:16:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:16:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:16:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:16:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:16:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:16:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:16:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:16:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:16:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:16:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:16:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:16:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:16:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:16:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:16:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:16:17 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:16:17 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:16:17 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:16:18 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:16:18 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:16:20 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:16:04.431687 End time: 2026-07-18 00:16:19.784391 2026-07-18 00:16:20 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:16:20 INFO tclean::::casa ########################################## 2026-07-18 00:16:20 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:16:20 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:16:20 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) 2026-07-18 00:16:20 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:16:20 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:16:20 2026****** 2026-07-18 00:16:20 INFO ImageFitter::fit+ 2026-07-18 00:16:20 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:16:20 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:16:20 INFO ImageFitter::fit+ --- region: 2026-07-18 00:16:20 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:16:20 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:16:20 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:16:20 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:16:20 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:16:20 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:16:20 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:16:20 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) 2026-07-18 00:16:20 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:16:20 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:16:20 INFO imstat::::casa ########################################## 2026-07-18 00:16:20 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:16:20 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 ) 2026-07-18 00:16:20 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:16:20 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:16:20 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:16:20 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:16:20 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:16:20 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) 2026-07-18 00:16:20 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:16:20 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:16:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:16:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:16:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:16:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:16:20 INFO imstat:::: Values --- 2026-07-18 00:16:20 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:16:20 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:16:20 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:16:20 INFO imstat:::: -- minimum value [min]: -7.7789e-05 Jy/beam 2026-07-18 00:16:20 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:16:20 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:16:20 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:16:20 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:16:20 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:16:20 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:16:20 INFO imstat:::: Statistics --- 2026-07-18 00:16:20 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:16:20 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:16:20 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:16:20 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:16:20 INFO imstat:::: -- Median of the pixel values [median]: -1.86647e-05 Jy/beam 2026-07-18 00:16:20 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73649e-05 Jy/beam 2026-07-18 00:16:20 INFO imstat:::: -- IQR [quartile]: 3.56182e-05 Jy/beam 2026-07-18 00:16:20 INFO imstat:::: -- First quartile [q1]: -3.45079e-05 Jy/beam 2026-07-18 00:16:20 INFO imstat:::: -- Third quartile [q3]: 1.11022e-06 Jy/beam 2026-07-18 00:16:20 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:16:20 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:16:20 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:16:20 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:16:20 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:16:20 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:16:20 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 2026-07-18 00:16:20 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:16:19.849970 End time: 2026-07-18 00:16:19.870590 2026-07-18 00:16:20 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:16:20 INFO imstat::::casa ########################################## 2026-07-18 00:16:20 INFO phaseshift::::casa ########################################## 2026-07-18 00:16:20 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:16:20 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 5.201492224rad 39d58m05.8512' ) 2026-07-18 00:16:20 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:16:20 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:16:20 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:16:20 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:16:20 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:16:20 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:16:20 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:16:20 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:16:20 INFO MSTransformManager::open Select data 2026-07-18 00:16:20 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:16:23 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:16:23 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 39d58m05.8512' successfully parsed 2026-07-18 00:16:23 INFO phaseshift::::casa Shift phase center 2026-07-18 00:16:24 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:16:24 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:16:19.883513 End time: 2026-07-18 00:16:24.028347 2026-07-18 00:16:24 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:16:24 INFO phaseshift::::casa ########################################## 2026-07-18 00:16:24 INFO tclean::::casa ########################################## 2026-07-18 00:16:24 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:16:24 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, 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 ) 2026-07-18 00:16:24 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:16:24 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:16:24 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:16:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:16:24 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:16:24 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:16:24 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:16:24 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:16:24 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:16:24 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:16:24 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:16:24 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:16:26 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:16:26 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.023254 2026-07-18 00:16:26 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:16:26 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:16:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:16:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:16:28 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:16:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:16:29 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:16:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:16:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:16:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:16:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:16:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:16:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:16:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:16:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:16:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:16:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:16:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:16:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:16:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:16:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:16:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:16:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:16:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:16:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:16:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:16:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:16:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:16:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:16:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:16:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:16:38 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:16:38 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:16:38 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:16:39 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:16:39 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:16:41 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:16:24.058317 End time: 2026-07-18 00:16:40.842304 2026-07-18 00:16:41 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:16:41 INFO tclean::::casa ########################################## 2026-07-18 00:16:41 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:16:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:16:41 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) 2026-07-18 00:16:41 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:16:41 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:16:41 2026****** 2026-07-18 00:16:41 INFO ImageFitter::fit+ 2026-07-18 00:16:41 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:16:41 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:16:41 INFO ImageFitter::fit+ --- region: 2026-07-18 00:16:41 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:16:41 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:16:41 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:16:41 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:16:41 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:16:41 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:16:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:16:41 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) 2026-07-18 00:16:41 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:16:41 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:16:41 INFO imstat::::casa ########################################## 2026-07-18 00:16:41 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:16:41 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 ) 2026-07-18 00:16:41 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:16:41 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:16:41 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:16:41 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:16:41 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:16:41 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) 2026-07-18 00:16:41 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:16:41 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:16:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:16:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:16:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:16:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:16:41 INFO imstat:::: Values --- 2026-07-18 00:16:41 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:16:41 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:16:41 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:16:41 INFO imstat:::: -- minimum value [min]: -7.77853e-05 Jy/beam 2026-07-18 00:16:41 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:16:41 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:16:41 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:16:41 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:16:41 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:16:41 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:16:41 INFO imstat:::: Statistics --- 2026-07-18 00:16:41 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:16:41 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:16:41 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:16:41 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:16:41 INFO imstat:::: -- Median of the pixel values [median]: -1.86679e-05 Jy/beam 2026-07-18 00:16:41 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73586e-05 Jy/beam 2026-07-18 00:16:41 INFO imstat:::: -- IQR [quartile]: 3.56112e-05 Jy/beam 2026-07-18 00:16:41 INFO imstat:::: -- First quartile [q1]: -3.45109e-05 Jy/beam 2026-07-18 00:16:41 INFO imstat:::: -- Third quartile [q3]: 1.10039e-06 Jy/beam 2026-07-18 00:16:41 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:16:41 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:16:41 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:16:41 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:16:41 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:16:41 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:16:41 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 2026-07-18 00:16:41 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:16:40.899335 End time: 2026-07-18 00:16:40.920595 2026-07-18 00:16:41 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:16:41 INFO imstat::::casa ########################################## 2026-07-18 00:16:41 INFO phaseshift::::casa ########################################## 2026-07-18 00:16:41 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:16:41 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 5.201492224rad 02:39:52.3901' ) 2026-07-18 00:16:41 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:16:41 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:16:41 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:16:41 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:16:41 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:16:41 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:16:41 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:16:41 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:16:41 INFO MSTransformManager::open Select data 2026-07-18 00:16:41 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:16:44 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 ".". 2026-07-18 00:16:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 02:39:52.3901' successfully parsed 2026-07-18 00:16:44 INFO phaseshift::::casa Shift phase center 2026-07-18 00:16:45 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:16:45 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:16:40.932934 End time: 2026-07-18 00:16:45.244071 2026-07-18 00:16:45 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:16:45 INFO phaseshift::::casa ########################################## 2026-07-18 00:16:45 INFO tclean::::casa ########################################## 2026-07-18 00:16:45 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:16:45 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, 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 ) 2026-07-18 00:16:45 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:16:45 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:16:45 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:16:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:16:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:16:45 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:16:45 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:16:45 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:16:45 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:16:45 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:16:45 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:16:45 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:16:46 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:16:47 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.022036 2026-07-18 00:16:47 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:16:47 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:16:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:16:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:16:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:16:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:16:49 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:16:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:16:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:16:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:16:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:16:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:16:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:16:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:16:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:16:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:16:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:16:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:16:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:16:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:16:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:16:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:16:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:16:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:16:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:16:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:16:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-07-18 00:16:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:16:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:16:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:16:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:16:56 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:16:56 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:16:56 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:16:57 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:16:57 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:16:59 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:16:45.273696 End time: 2026-07-18 00:16:58.539759 2026-07-18 00:16:59 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:16:59 INFO tclean::::casa ########################################## 2026-07-18 00:16:59 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:16:59 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:16:59 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) 2026-07-18 00:16:59 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:16:59 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:16:59 2026****** 2026-07-18 00:16:59 INFO ImageFitter::fit+ 2026-07-18 00:16:59 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:16:59 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:16:59 INFO ImageFitter::fit+ --- region: 2026-07-18 00:16:59 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:16:59 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:16:59 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:16:59 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:16:59 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:16:59 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:16:59 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:16:59 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) 2026-07-18 00:16:59 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116885 Jy 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126501 Jy 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:16:59 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:16:59 INFO imstat::::casa ########################################## 2026-07-18 00:16:59 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:16:59 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 ) 2026-07-18 00:16:59 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:16:59 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:16:59 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:16:59 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:16:59 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:16:59 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) 2026-07-18 00:16:59 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:16:59 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:16:59 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:16:59 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:16:59 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-07-18 00:16:59 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-07-18 00:16:59 INFO imstat:::: Values --- 2026-07-18 00:16:59 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:16:59 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:16:59 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:16:59 INFO imstat:::: -- minimum value [min]: -7.78268e-05 Jy/beam 2026-07-18 00:16:59 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:16:59 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:16:59 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:16:59 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:16:59 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:16:59 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:16:59 INFO imstat:::: Statistics --- 2026-07-18 00:16:59 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:16:59 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:16:59 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:16:59 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:16:59 INFO imstat:::: -- Median of the pixel values [median]: -1.8675e-05 Jy/beam 2026-07-18 00:16:59 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73782e-05 Jy/beam 2026-07-18 00:16:59 INFO imstat:::: -- IQR [quartile]: 3.56598e-05 Jy/beam 2026-07-18 00:16:59 INFO imstat:::: -- First quartile [q1]: -3.45364e-05 Jy/beam 2026-07-18 00:16:59 INFO imstat:::: -- Third quartile [q3]: 1.12335e-06 Jy/beam 2026-07-18 00:16:59 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:16:59 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:16:59 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:16:59 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:16:59 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:16:59 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:16:59 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 2026-07-18 00:16:59 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:16:58.596549 End time: 2026-07-18 00:16:58.616528 2026-07-18 00:16:59 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:16:59 INFO imstat::::casa ########################################## 2026-07-18 00:16:59 INFO phaseshift::::casa ########################################## 2026-07-18 00:16:59 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:16:59 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' ) 2026-07-18 00:16:59 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:16:59 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:16:59 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:16:59 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:16:59 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:16:59 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:16:59 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:16:59 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:16:59 INFO MSTransformManager::open Select data 2026-07-18 00:16:59 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:17:02 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:17:02 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 39.968292000deg' successfully parsed 2026-07-18 00:17:02 INFO phaseshift::::casa Shift phase center 2026-07-18 00:17:03 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:17:03 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:16:58.629216 End time: 2026-07-18 00:17:02.989138 2026-07-18 00:17:03 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:17:03 INFO phaseshift::::casa ########################################## 2026-07-18 00:17:03 INFO tclean::::casa ########################################## 2026-07-18 00:17:03 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:17:03 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, 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 ) 2026-07-18 00:17:03 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:17:03 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:17:03 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:17:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:17:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:17:03 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:17:03 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:17:03 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:17:03 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:17:03 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:17:03 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:17:03 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:17:04 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:17:04 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021645 2026-07-18 00:17:04 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:17:04 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:17:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:17:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:17:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:17:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:17:07 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:17:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:17:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:17:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:17:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:17:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:17:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:17:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:17:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:17:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:17:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:17:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:17:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:17:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:17:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:17:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:17:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:17:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:17:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:17:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:17:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:17:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:17:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:17:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:17:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:17:14 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:17:14 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:17:14 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:17:14 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:17:15 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:17:17 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:17:03.019544 End time: 2026-07-18 00:17:16.558227 2026-07-18 00:17:17 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:17:17 INFO tclean::::casa ########################################## 2026-07-18 00:17:17 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:17:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:17:17 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) 2026-07-18 00:17:17 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:17:17 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:17:17 2026****** 2026-07-18 00:17:17 INFO ImageFitter::fit+ 2026-07-18 00:17:17 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:17:17 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:17:17 INFO ImageFitter::fit+ --- region: 2026-07-18 00:17:17 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:17:17 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:17:17 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:17:17 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:17:17 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:17:17 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:17:17 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:17:17 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) 2026-07-18 00:17:17 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:17:17 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:17:17 INFO imstat::::casa ########################################## 2026-07-18 00:17:17 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:17:17 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 ) 2026-07-18 00:17:17 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:17:17 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:17:17 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:17:17 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:17:17 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:17:17 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) 2026-07-18 00:17:17 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:17:17 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:17:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:17:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:17:17 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:17:17 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:17:17 INFO imstat:::: Values --- 2026-07-18 00:17:17 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:17:17 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:17:17 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:17:17 INFO imstat:::: -- minimum value [min]: -7.77853e-05 Jy/beam 2026-07-18 00:17:17 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:17:17 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:17:17 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:17:17 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:17:17 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:17:17 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:17:17 INFO imstat:::: Statistics --- 2026-07-18 00:17:17 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:17:17 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:17:17 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:17:17 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:17:17 INFO imstat:::: -- Median of the pixel values [median]: -1.86679e-05 Jy/beam 2026-07-18 00:17:17 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73586e-05 Jy/beam 2026-07-18 00:17:17 INFO imstat:::: -- IQR [quartile]: 3.56112e-05 Jy/beam 2026-07-18 00:17:17 INFO imstat:::: -- First quartile [q1]: -3.45109e-05 Jy/beam 2026-07-18 00:17:17 INFO imstat:::: -- Third quartile [q3]: 1.10039e-06 Jy/beam 2026-07-18 00:17:17 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:17:17 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:17:17 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:17:17 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:17:17 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:17:17 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:17:17 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 2026-07-18 00:17:17 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:17:16.613741 End time: 2026-07-18 00:17:16.634330 2026-07-18 00:17:17 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:17:17 INFO imstat::::casa ########################################## 2026-07-18 00:17:17 INFO phaseshift::::casa ########################################## 2026-07-18 00:17:17 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-07-18 00:17:17 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 0.697578292rad' ) 2026-07-18 00:17:17 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-07-18 00:17:17 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-07-18 00:17:17 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-07-18 00:17:17 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-07-18 00:17:17 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-07-18 00:17:17 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-07-18 00:17:17 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-07-18 00:17:17 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-07-18 00:17:17 INFO MSTransformManager::open Select data 2026-07-18 00:17:17 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-07-18 00:17:21 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-07-18 00:17:21 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 0.697578292rad' successfully parsed 2026-07-18 00:17:21 INFO phaseshift::::casa Shift phase center 2026-07-18 00:17:23 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-07-18 00:17:23 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-07-18 00:17:16.647808 End time: 2026-07-18 00:17:22.614982 2026-07-18 00:17:23 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-07-18 00:17:23 INFO phaseshift::::casa ########################################## 2026-07-18 00:17:23 INFO tclean::::casa ########################################## 2026-07-18 00:17:23 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-07-18 00:17:23 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, 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 ) 2026-07-18 00:17:23 INFO tclean::::casa Verifying Input Parameters 2026-07-18 00:17:23 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-07-18 00:17:23 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-07-18 00:17:23 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:17:23 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-07-18 00:17:23 INFO SynthesisImagerVi2::defineImage Impars: start 2026-07-18 00:17:23 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-07-18 00:17:23 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-07-18 00:17:23 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 10.82 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-07-18 00:17:23 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-07-18 00:17:23 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-07-18 00:17:23 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-07-18 00:17:24 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-07-18 00:17:25 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020995 2026-07-18 00:17:25 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:17:25 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-07-18 00:17:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-07-18 00:17:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-07-18 00:17:27 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-07-18 00:17:27 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-07-18 00:17:27 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-07-18 00:17:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:17:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-07-18 00:17:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-07-18 00:17:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-07-18 00:17:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-07-18 00:17:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-07-18 00:17:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:17:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-07-18 00:17:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-07-18 00:17:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-07-18 00:17:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-07-18 00:17:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-07-18 00:17:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:17:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-07-18 00:17:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-07-18 00:17:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-07-18 00:17:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-07-18 00:17:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-07-18 00:17:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-07-18 00:17:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-07-18 00:17:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-07-18 00:17:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-07-18 00:17:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-07-18 00:17:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-07-18 00:17:34 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-07-18 00:17:34 INFO tclean::::casa getSummary call: fullsummary=False 2026-07-18 00:17:34 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-07-18 00:17:34 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-07-18 00:17:35 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.mask', 'im_post_phaseshift.model', 'im_post_phaseshift.residual', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.pb', 'im_post_phaseshift.psf', 'im_post_phaseshift.image'] 2026-07-18 00:17:36 INFO tclean::::casa Task tclean complete. Start time: 2026-07-18 00:17:22.646379 End time: 2026-07-18 00:17:36.166862 2026-07-18 00:17:36 INFO tclean::::casa ##### End Task: tclean ##### 2026-07-18 00:17:36 INFO tclean::::casa ########################################## 2026-07-18 00:17:36 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-07-18 00:17:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:17:36 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) 2026-07-18 00:17:36 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-07-18 00:17:36 INFO ImageFitter::fit ****** Fit performed at Sat Jul 18 00:17:36 2026****** 2026-07-18 00:17:36 INFO ImageFitter::fit+ 2026-07-18 00:17:36 INFO ImageFitter::fit+ Input parameters --- 2026-07-18 00:17:36 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-07-18 00:17:36 INFO ImageFitter::fit+ --- region: 2026-07-18 00:17:36 INFO ImageFitter::fit+ --- channel: 0 2026-07-18 00:17:36 INFO ImageFitter::fit+ --- stokes: I 2026-07-18 00:17:36 INFO ImageFitter::fit+ --- mask: 2026-07-18 00:17:36 INFO ImageFitter::fit+ --- include pixel range: [] 2026-07-18 00:17:36 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-07-18 00:17:36 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-07-18 00:17:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:17:36 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) 2026-07-18 00:17:36 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ Position --- 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ Flux --- 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-07-18 00:17:36 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-07-18 00:17:36 INFO imstat::::casa ########################################## 2026-07-18 00:17:36 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-07-18 00:17:36 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 ) 2026-07-18 00:17:36 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-07-18 00:17:36 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-07-18 00:17:36 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-07-18 00:17:36 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-07-18 00:17:36 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-07-18 00:17:36 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) 2026-07-18 00:17:36 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-07-18 00:17:36 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-07-18 00:17:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-07-18 00:17:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-07-18 00:17:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-07-18 00:17:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-07-18 00:17:36 INFO imstat:::: Values --- 2026-07-18 00:17:36 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-07-18 00:17:36 INFO imstat:::: -- number of points [npts]: 65536 2026-07-18 00:17:36 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-07-18 00:17:36 INFO imstat:::: -- minimum value [min]: -7.77956e-05 Jy/beam 2026-07-18 00:17:36 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-07-18 00:17:36 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-07-18 00:17:36 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-07-18 00:17:36 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-07-18 00:17:36 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-07-18 00:17:36 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-07-18 00:17:36 INFO imstat:::: Statistics --- 2026-07-18 00:17:36 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-07-18 00:17:36 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-07-18 00:17:36 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-07-18 00:17:36 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-07-18 00:17:36 INFO imstat:::: -- Median of the pixel values [median]: -1.86648e-05 Jy/beam 2026-07-18 00:17:36 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73536e-05 Jy/beam 2026-07-18 00:17:36 INFO imstat:::: -- IQR [quartile]: 3.5639e-05 Jy/beam 2026-07-18 00:17:36 INFO imstat:::: -- First quartile [q1]: -3.45152e-05 Jy/beam 2026-07-18 00:17:36 INFO imstat:::: -- Third quartile [q3]: 1.12373e-06 Jy/beam 2026-07-18 00:17:36 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-07-18 00:17:36 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-07-18 00:17:36 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-07-18 00:17:36 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-07-18 00:17:36 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-07-18 00:17:36 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-07-18 00:17:36 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 2026-07-18 00:17:36 INFO imstat::::casa Task imstat complete. Start time: 2026-07-18 00:17:36.235503 End time: 2026-07-18 00:17:36.269183 2026-07-18 00:17:36 INFO imstat::::casa ##### End Task: imstat ##### 2026-07-18 00:17:36 INFO imstat::::casa ########################################## . ---------------------------------------------------------------------- Ran 27 tests in 1474.015s OK Generating XML reports...