2026-04-24 04:02:41 INFO ::casa Using user configuration file /home/casatest/.casa/config.py 2026-04-24 04:02:41 INFO ::casa loaded config file : /wheeldirectory/casa-6.7.4-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casaconfig/config.py 2026-04-24 04:02:41 INFO ::casa loaded config file : /home/casatest/.casa/config.py 2026-04-24 04:02:41 INFO ::casa 2026-04-24 04:02:41 INFO ::casa config values 2026-04-24 04:02:41 INFO ::casa agg = False 2026-04-24 04:02:41 INFO ::casa cachedir = '/home/casatest/.casa' 2026-04-24 04:02:41 INFO ::casa casaconfig_verbose = 1 2026-04-24 04:02:41 INFO ::casa colors = 'Neutral' 2026-04-24 04:02:41 INFO ::casa data_auto_update = False 2026-04-24 04:02:41 INFO ::casa data_update_interval = 1 2026-04-24 04:02:41 INFO ::casa datapath = ['/opt/casa/data/master', '/opt/casa/data/casatestdata'] 2026-04-24 04:02:41 INFO ::casa iplog = False 2026-04-24 04:02:41 INFO ::casa iplogfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/ipython-20260424-040236.log' 2026-04-24 04:02:41 INFO ::casa log2term = True 2026-04-24 04:02:41 INFO ::casa logfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/casa-20260424-040236.log' 2026-04-24 04:02:41 INFO ::casa measures_auto_update = False 2026-04-24 04:02:41 INFO ::casa measures_site = ['https://www.astron.nl/iers/', 'https://go.nrao.edu/iers/'] 2026-04-24 04:02:41 INFO ::casa measures_site_interval = 2 2026-04-24 04:02:41 INFO ::casa measures_update_interval = 1 2026-04-24 04:02:41 INFO ::casa measurespath = '/opt/casa/data/master' 2026-04-24 04:02:41 INFO ::casa nogui = False 2026-04-24 04:02:41 INFO ::casa nologfile = False 2026-04-24 04:02:41 INFO ::casa nologger = True 2026-04-24 04:02:41 INFO ::casa pipeline = False 2026-04-24 04:02:41 INFO ::casa startupfile = '/home/casatest/.casa/startup.py' 2026-04-24 04:02:41 INFO ::casa user_site = False 2026-04-24 04:02:41 INFO ::casa 2026-04-24 04:02:41 INFO ::casa casarundata version is unknown, this is probably a legacy version not installed by casaconfig 2026-04-24 04:02:41 INFO ::casa measures version is unknown, this is probably a legacy version not installed by casaconfig 2026-04-24 04:02:41 INFO ::casa 2026-04-24 04:02:41 INFO ::casa Checking Measures tables in data repository sub-directory /opt/casa/data/master/geodetic 2026-04-24 04:02:41 INFO ::casa IERSeop2000 (version date, last date in table (UTC)): 2026/04/23/12:59, 2026/03/23/00:00:00 2026-04-24 04:02:41 INFO ::casa IERSeop97 (version date, last date in table (UTC)): 2026/04/23/12:59, 2026/03/23/00:00:00 2026-04-24 04:02:41 INFO ::casa IERSpredict (version date, last date in table (UTC)): 2026/04/23/15:15, 2026/07/22/00:00:00 2026-04-24 04:02:41 INFO ::casa TAI_UTC (version date, last date in table (UTC)): 2026/03/27/15:15, 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 6.7.4.2 -- Common Astronomy Software Applications [6.7.4.2] 2026-04-24 04:02:42 INFO phaseshift::::casa ########################################## 2026-04-24 04:02:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:02:42 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'} ) 2026-04-24 04:02:43 INFO MSTransformManager::parseMsSpecParams Input file name is /opt/casa/data/casatestdata/unittest/phaseshift/split11.ms 2026-04-24 04:02:43 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:02:43 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshift11.ms 2026-04-24 04:02:43 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:02:43 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:02:43 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:02:43 INFO MSTransformManager::open Select data 2026-04-24 04:02:43 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:02:47 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-04-24 04:02:47 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 1h27m38.337s +5d25m38.886s' successfully parsed for field 0 2026-04-24 04:02:47 INFO phaseshift::::casa Shift phase center 2026-04-24 04:02:49 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:02:49 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:02:42.215694 End time: 2026-04-24 04:02:48.619338 2026-04-24 04:02:49 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:02:49 INFO phaseshift::::casa ########################################## .2026-04-24 04:02:49 INFO phaseshift::::casa ########################################## 2026-04-24 04:02:49 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:02:49 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'} ) 2026-04-24 04:02:49 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-04-24 04:02:49 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:02:49 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-04-24 04:02:49 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:02:49 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:02:49 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:02:49 INFO MSTransformManager::open Select data 2026-04-24 04:02:49 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:02:53 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-04-24 04:02:53 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 19h53m50 40d06m00' successfully parsed for field 0 2026-04-24 04:02:53 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 22h01m02 40d04m03' successfully parsed for field 2 2026-04-24 04:02:53 INFO phaseshift::::casa Shift phase center 2026-04-24 04:02:55 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:02:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:02:48.762150 End time: 2026-04-24 04:02:54.830537 2026-04-24 04:02:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:02:55 INFO phaseshift::::casa ########################################## .2026-04-24 04:02:55 INFO phaseshift::::casa ########################################## 2026-04-24 04:02:55 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:02:55 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'} ) 2026-04-24 04:02:55 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-04-24 04:02:55 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:02:55 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-04-24 04:02:55 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:02:55 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:02:55 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:02:55 INFO MSTransformManager::open Select data 2026-04-24 04:02:55 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:02:58 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-04-24 04:02:58 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 0 2026-04-24 04:02:59 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: Wrong field ID given: 3. This MeasurementSet has field IDs between 0 and 2 2026-04-24 04:02:59 INFO phaseshift::::casa Traceback (most recent call last): 2026-04-24 04:02:59 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-04-24 04:02:59 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'] ) 2026-04-24 04:02:59 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-04-24 04:02:59 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-04-24 04:02:59 INFO phaseshift::::casa+ mtlocal.open() 2026-04-24 04:02:59 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-04-24 04:02:59 INFO phaseshift::::casa+ return self._swigobj.open() 2026-04-24 04:02:59 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-04-24 04:02:59 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 176, in open 2026-04-24 04:02:59 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-04-24 04:02:59 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-04-24 04:02:59 INFO phaseshift::::casa+ RuntimeError: Wrong field ID given: 3. This MeasurementSet has field IDs between 0 and 2 2026-04-24 04:02:59 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:02:54.966698 End time: 2026-04-24 04:02:58.734387 2026-04-24 04:02:59 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:02:59 INFO phaseshift::::casa ########################################## .2026-04-24 04:02:59 INFO phaseshift::::casa ########################################## 2026-04-24 04:02:59 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:02:59 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'} ) 2026-04-24 04:02:59 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-04-24 04:02:59 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:02:59 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-04-24 04:02:59 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:02:59 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:02:59 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:02:59 INFO MSTransformManager::open Select data 2026-04-24 04:02:59 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:03:02 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-04-24 04:03:02 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 0 2026-04-24 04:03:02 INFO phaseshift::::casa Shift phase center 2026-04-24 04:03:03 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:03:03 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:02:58.854493 End time: 2026-04-24 04:03:03.039833 2026-04-24 04:03:03 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:03:03 INFO phaseshift::::casa ########################################## .2026-04-24 04:03:03 INFO phaseshift::::casa ########################################## 2026-04-24 04:03:03 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:03:03 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'} ) 2026-04-24 04:03:03 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-04-24 04:03:03 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:03:03 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-04-24 04:03:03 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:03:03 INFO MSTransformManager::parseDataSelParams field selection is 0,2 2026-04-24 04:03:03 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:03:03 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:03:03 INFO MSTransformManager::open Select data 2026-04-24 04:03:03 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:03:03 INFO MSTransformDataHandler::makeSelection 11536 out of 15344 rows are going to be considered due to the selection criteria. 2026-04-24 04:03:07 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-04-24 04:03:07 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed for field 1 2026-04-24 04:03:07 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 22h01m02 40d04m03' successfully parsed for field 2 2026-04-24 04:03:07 INFO phaseshift::::casa Shift phase center 2026-04-24 04:03:07 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:03:07 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:03:03.294176 End time: 2026-04-24 04:03:07.483388 2026-04-24 04:03:07 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:03:07 INFO phaseshift::::casa ########################################## .2026-04-24 04:03:08 INFO phaseshift::::casa ########################################## 2026-04-24 04:03:08 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:03:08 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'} ) 2026-04-24 04:03:08 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-04-24 04:03:08 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:03:08 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-04-24 04:03:08 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:03:08 INFO MSTransformManager::parseDataSelParams field selection is 0,2 2026-04-24 04:03:08 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:03:08 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:03:08 INFO MSTransformManager::open Select data 2026-04-24 04:03:08 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:03:08 INFO MSTransformDataHandler::makeSelection 11536 out of 15344 rows are going to be considered due to the selection criteria. 2026-04-24 04:03:10 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a dictionary of field->center.Using following phase centers: 2026-04-24 04:03:10 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m50 40d06m00' successfully parsed for field 0 2026-04-24 04:03:10 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 22h01m02 40d04m03' successfully parsed for field 2 2026-04-24 04:03:10 INFO phaseshift::::casa Shift phase center 2026-04-24 04:03:12 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:03:12 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:03:07.650097 End time: 2026-04-24 04:03:11.589257 2026-04-24 04:03:12 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:03:12 INFO phaseshift::::casa ########################################## .2026-04-24 04:03:12 INFO phaseshift::::casa ########################################## 2026-04-24 04:03:12 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:03:12 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' ) 2026-04-24 04:03:12 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-04-24 04:03:12 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:03:12 INFO MSTransformManager::parseMsSpecParams Output file name is test_vis_multi_field_phasecenter_dict.ms 2026-04-24 04:03:12 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:03:12 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:03:12 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:03:12 INFO MSTransformManager::open Select data 2026-04-24 04:03:12 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:03:14 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:03:14 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-04-24 04:03:14 INFO phaseshift::::casa Shift phase center 2026-04-24 04:03:15 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:03:16 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:03:11.706613 End time: 2026-04-24 04:03:15.508575 2026-04-24 04:03:16 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:03:16 INFO phaseshift::::casa ########################################## ..2026-04-24 04:03:17 INFO MeasIERS::fillMeas(MeasIERS::Files, Double) Requested JD 0 is outside the range of the IERS (Earth axis data) table. 2026-04-24 04:03:17 INFO MeasIERS::fillMeas(MeasIERS::Files, Double) + Calculations will proceed with less precision ..2026-04-24 04:03:17 SEVERE Error in QuantumHolder::fromString with input string "xxh53m50": Illegal input units or format 2026-04-24 04:03:17 SEVERE + in converting quantity from string 2026-04-24 04:03:17 SEVERE Exception Reported: Empty QuantumHolder argument for asQuantumDouble 2026-04-24 04:03:17 SEVERE Exception Reports: Empty QuantumHolder argument for asQuantumDouble 2026-04-24 04:03:17 SEVERE phaseshift::::casa *** Error measures.direction() failed for phasecenter string: BOGUS xxh53m50 40d06m00 when interpreting parameter 'phasecenter': ...2026-04-24 04:03:22 INFO phaseshift::::casa ########################################## 2026-04-24 04:03:22 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:03:22 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' ) 2026-04-24 04:03:22 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-04-24 04:03:22 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:03:22 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-24 04:03:22 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:03:22 INFO MSTransformManager::parseDataSelParams array selection is 1 2026-04-24 04:03:22 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:03:22 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:03:22 INFO MSTransformManager::open Select data 2026-04-24 04:03:22 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:03:22 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: MSSelectionNullSelection : The selected table has zero rows. 2026-04-24 04:03:22 INFO phaseshift::::casa Traceback (most recent call last): 2026-04-24 04:03:22 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-04-24 04:03:22 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'] ) 2026-04-24 04:03:22 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-04-24 04:03:22 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-04-24 04:03:22 INFO phaseshift::::casa+ mtlocal.open() 2026-04-24 04:03:22 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-04-24 04:03:22 INFO phaseshift::::casa+ return self._swigobj.open() 2026-04-24 04:03:22 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-04-24 04:03:22 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 176, in open 2026-04-24 04:03:22 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-04-24 04:03:22 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-04-24 04:03:22 INFO phaseshift::::casa+ RuntimeError: MSSelectionNullSelection : The selected table has zero rows. 2026-04-24 04:03:22 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:03:21.839277 End time: 2026-04-24 04:03:21.874479 2026-04-24 04:03:22 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:03:22 INFO phaseshift::::casa ########################################## 2026-04-24 04:03:22 INFO phaseshift::::casa ########################################## 2026-04-24 04:03:22 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:03:22 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' ) 2026-04-24 04:03:22 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-04-24 04:03:22 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:03:22 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-24 04:03:22 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:03:22 INFO MSTransformManager::parseDataSelParams array selection is 0 2026-04-24 04:03:22 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:03:22 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:03:22 INFO MSTransformManager::open Select data 2026-04-24 04:03:22 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:03:24 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-04-24 04:03:24 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-04-24 04:03:26 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:03:26 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-04-24 04:03:26 INFO phaseshift::::casa Shift phase center 2026-04-24 04:03:27 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:03:27 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:03:21.875500 End time: 2026-04-24 04:03:26.604807 2026-04-24 04:03:27 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:03:27 INFO phaseshift::::casa ########################################## .2026-04-24 04:03:28 INFO phaseshift::::casa ########################################## 2026-04-24 04:03:28 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:03:28 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' ) 2026-04-24 04:03:28 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-04-24 04:03:28 INFO MSTransformManager::parseMsSpecParams Data column is MODEL 2026-04-24 04:03:28 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-24 04:03:28 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:03:28 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:03:28 WARN MSTransformManager::checkDataColumnsToFill MODEL_DATA column requested but not available in input MS 2026-04-24 04:03:28 INFO MSTransformManager::open Select data 2026-04-24 04:03:28 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:03:28 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). 2026-04-24 04:03:28 INFO phaseshift::::casa Traceback (most recent call last): 2026-04-24 04:03:28 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-04-24 04:03:28 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'] ) 2026-04-24 04:03:28 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-04-24 04:03:28 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-04-24 04:03:28 INFO phaseshift::::casa+ mtlocal.open() 2026-04-24 04:03:28 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-04-24 04:03:28 INFO phaseshift::::casa+ return self._swigobj.open() 2026-04-24 04:03:28 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-04-24 04:03:28 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 176, in open 2026-04-24 04:03:28 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-04-24 04:03:28 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-04-24 04:03:28 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). 2026-04-24 04:03:28 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:03:27.841774 End time: 2026-04-24 04:03:27.869862 2026-04-24 04:03:28 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:03:28 INFO phaseshift::::casa ########################################## 2026-04-24 04:03:28 INFO phaseshift::::casa ########################################## 2026-04-24 04:03:28 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:03:28 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' ) 2026-04-24 04:03:28 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-04-24 04:03:28 INFO MSTransformManager::parseMsSpecParams Data column is DATA 2026-04-24 04:03:28 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-24 04:03:28 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:03:28 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:03:28 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:03:28 INFO MSTransformManager::open Select data 2026-04-24 04:03:28 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:03:30 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-04-24 04:03:30 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-04-24 04:03:32 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:03:32 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-04-24 04:03:32 INFO phaseshift::::casa Shift phase center 2026-04-24 04:03:32 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:03:33 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:03:27.870815 End time: 2026-04-24 04:03:32.537091 2026-04-24 04:03:33 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:03:33 INFO phaseshift::::casa ########################################## .2026-04-24 04:03:34 INFO phaseshift::::casa ########################################## 2026-04-24 04:03:34 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:03:34 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' ) 2026-04-24 04:03:34 INFO MSTransformManager::parseMsSpecParams Input file name is Itziar_copy.ms 2026-04-24 04:03:34 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:03:34 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-24 04:03:34 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:03:34 INFO MSTransformManager::parseDataSelParams field selection is 2 2026-04-24 04:03:34 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:03:34 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:03:34 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:03:34 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:03:34 INFO MSTransformManager::open Select data 2026-04-24 04:03:34 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:03:34 INFO MSTransformDataHandler::makeSelection 6125 out of 245000 rows are going to be considered due to the selection criteria. 2026-04-24 04:03:36 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:03:36 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 00h00m01 -29d55m40' successfully parsed 2026-04-24 04:03:36 INFO phaseshift::::casa Shift phase center 2026-04-24 04:03:37 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:03:37 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:03:33.854359 End time: 2026-04-24 04:03:36.995832 2026-04-24 04:03:37 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:03:37 INFO phaseshift::::casa ########################################## .2026-04-24 04:03:38 INFO phaseshift::::casa ########################################## 2026-04-24 04:03:38 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:03:38 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' ) 2026-04-24 04:03:38 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-04-24 04:03:38 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:03:38 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-24 04:03:38 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:03:38 INFO MSTransformManager::parseDataSelParams scan intent selection is *FLUX* 2026-04-24 04:03:38 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:03:38 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:03:38 INFO MSTransformManager::open Select data 2026-04-24 04:03:38 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:03:38 INFO MSTransformDataHandler::makeSelection 570 out of 6270 rows are going to be considered due to the selection criteria. 2026-04-24 04:03:41 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-04-24 04:03:41 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-04-24 04:03:43 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:03:43 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-04-24 04:03:43 INFO phaseshift::::casa Shift phase center 2026-04-24 04:03:44 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:03:44 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:03:38.100981 End time: 2026-04-24 04:03:44.089325 2026-04-24 04:03:44 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:03:44 INFO phaseshift::::casa ########################################## .2026-04-24 04:03:45 INFO phaseshift::::casa ########################################## 2026-04-24 04:03:45 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:03:45 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' ) 2026-04-24 04:03:45 INFO MSTransformManager::parseMsSpecParams Input file name is mms_copy.mms 2026-04-24 04:03:45 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:03:45 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-24 04:03:45 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:03:45 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:03:45 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:03:45 INFO MSTransformManager::open Select data 2026-04-24 04:03:45 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:03:49 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:03:49 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 05h30m48 13d31m48' successfully parsed 2026-04-24 04:03:49 INFO phaseshift::::casa Shift phase center 2026-04-24 04:03:50 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:03:50 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:03:45.224020 End time: 2026-04-24 04:03:50.347219 2026-04-24 04:03:50 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:03:50 INFO phaseshift::::casa ########################################## .2026-04-24 04:03:52 INFO phaseshift::::casa ########################################## 2026-04-24 04:03:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:03:52 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' ) 2026-04-24 04:03:52 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-04-24 04:03:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:03:52 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-24 04:03:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:03:52 INFO MSTransformManager::parseDataSelParams observation selection is 1 2026-04-24 04:03:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:03:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:03:52 INFO MSTransformManager::open Select data 2026-04-24 04:03:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:03:52 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: MSSelectionNullSelection : The selected table has zero rows. 2026-04-24 04:03:52 INFO phaseshift::::casa Traceback (most recent call last): 2026-04-24 04:03:52 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-04-24 04:03:52 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'] ) 2026-04-24 04:03:52 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-04-24 04:03:52 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 99, in phaseshift 2026-04-24 04:03:52 INFO phaseshift::::casa+ mtlocal.open() 2026-04-24 04:03:52 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/mstransformer.py", line 36, in open 2026-04-24 04:03:52 INFO phaseshift::::casa+ return self._swigobj.open() 2026-04-24 04:03:52 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^ 2026-04-24 04:03:52 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/mstransformer.py", line 176, in open 2026-04-24 04:03:52 INFO phaseshift::::casa+ return _mstransformer.mstransformer_open(self) 2026-04-24 04:03:52 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-04-24 04:03:52 INFO phaseshift::::casa+ RuntimeError: MSSelectionNullSelection : The selected table has zero rows. 2026-04-24 04:03:52 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:03:51.598679 End time: 2026-04-24 04:03:51.634382 2026-04-24 04:03:52 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:03:52 INFO phaseshift::::casa ########################################## 2026-04-24 04:03:52 INFO phaseshift::::casa ########################################## 2026-04-24 04:03:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:03:52 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' ) 2026-04-24 04:03:52 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-04-24 04:03:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:03:52 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-24 04:03:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:03:52 INFO MSTransformManager::parseDataSelParams observation selection is 0 2026-04-24 04:03:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:03:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:03:52 INFO MSTransformManager::open Select data 2026-04-24 04:03:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:03:55 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-04-24 04:03:55 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-04-24 04:03:57 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:03:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -06d23m35' successfully parsed 2026-04-24 04:03:57 INFO phaseshift::::casa Shift phase center 2026-04-24 04:03:58 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:03:58 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:03:51.635381 End time: 2026-04-24 04:03:57.977602 2026-04-24 04:03:58 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:03:58 INFO phaseshift::::casa ########################################## .2026-04-24 04:03:59 INFO phaseshift::::casa ########################################## 2026-04-24 04:03:59 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:03:59 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-04-24 04:03:59 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-04-24 04:03:59 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:03:59 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-24 04:03:59 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:03:59 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:03:59 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:03:59 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:03:59 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:03:59 INFO MSTransformManager::open Select data 2026-04-24 04:03:59 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:04:03 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:04:03 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-04-24 04:04:03 INFO phaseshift::::casa Shift phase center 2026-04-24 04:04:04 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:04:05 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:03:59.316024 End time: 2026-04-24 04:04:04.503612 2026-04-24 04:04:05 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:04:05 INFO phaseshift::::casa ########################################## .2026-04-24 04:04:06 INFO phaseshift::::casa ########################################## 2026-04-24 04:04:06 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:04:06 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='' ) 2026-04-24 04:04:06 SEVERE phaseshift::::casa Exception Reported: Error in phaseshift: phasecenter parameter must be specified 2026-04-24 04:04:06 INFO phaseshift::::casa Traceback (most recent call last): 2026-04-24 04:04:06 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/phaseshift.py", line 577, in __call__ 2026-04-24 04:04:06 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'] ) 2026-04-24 04:04:06 INFO phaseshift::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-04-24 04:04:06 INFO phaseshift::::casa+ File "/wheeldirectory/casa-6.7.4-2-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_phaseshift.py", line 31, in phaseshift 2026-04-24 04:04:06 INFO phaseshift::::casa+ raise ValueError("phasecenter parameter must be specified") 2026-04-24 04:04:06 INFO phaseshift::::casa+ ValueError: phasecenter parameter must be specified 2026-04-24 04:04:06 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:04:05.589902 End time: 2026-04-24 04:04:05.591158 2026-04-24 04:04:06 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:04:06 INFO phaseshift::::casa ########################################## 2026-04-24 04:04:06 INFO phaseshift::::casa ########################################## 2026-04-24 04:04:06 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:04:06 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' ) 2026-04-24 04:04:06 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-04-24 04:04:06 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:04:06 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-24 04:04:06 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:04:06 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:04:06 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:04:06 INFO MSTransformManager::open Select data 2026-04-24 04:04:06 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:04:09 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-04-24 04:04:09 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-04-24 04:04:11 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:04:11 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 00h06m14 -08d23m35' successfully parsed 2026-04-24 04:04:11 INFO phaseshift::::casa Shift phase center 2026-04-24 04:04:12 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:04:12 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:04:05.592178 End time: 2026-04-24 04:04:11.785559 2026-04-24 04:04:12 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:04:12 INFO phaseshift::::casa ########################################## .2026-04-24 04:04:13 INFO phaseshift::::casa ########################################## 2026-04-24 04:04:13 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:04:13 INFO phaseshift::::casa phaseshift( vis='nep_copy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='00h06m14 -08d23m35' ) 2026-04-24 04:04:13 INFO MSTransformManager::parseMsSpecParams Input file name is nep_copy.ms 2026-04-24 04:04:13 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:04:13 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-24 04:04:13 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:04:13 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:04:13 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:04:13 INFO MSTransformManager::open Select data 2026-04-24 04:04:13 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:04:16 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM0_Pallas_57501.36900000.tab for output field Pallas 2026-04-24 04:04:17 INFO MSTransformDataHandler::copyEphemerisTable Transferring ephemeris EPHEM1_Neptune_57501.36900000.tab for output field Neptune 2026-04-24 04:04:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:04:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center '00h06m14 -08d23m35' successfully parsed 2026-04-24 04:04:18 INFO phaseshift::::casa Shift phase center 2026-04-24 04:04:19 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:04:19 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:04:12.976571 End time: 2026-04-24 04:04:18.837326 2026-04-24 04:04:19 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:04:19 INFO phaseshift::::casa ########################################## .2026-04-24 04:04:20 INFO phaseshift::::casa ########################################## 2026-04-24 04:04:20 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:04:20 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' ) 2026-04-24 04:04:20 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-04-24 04:04:20 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:04:20 INFO MSTransformManager::parseMsSpecParams Output file name is post_phaseshift.ms 2026-04-24 04:04:20 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:04:20 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:04:20 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:04:20 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:04:20 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:04:20 INFO MSTransformManager::open Select data 2026-04-24 04:04:20 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:04:23 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:04:23 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-04-24 04:04:23 INFO phaseshift::::casa Shift phase center 2026-04-24 04:04:24 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:04:24 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:04:19.998817 End time: 2026-04-24 04:04:24.410799 2026-04-24 04:04:24 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:04:24 INFO phaseshift::::casa ########################################## 2026-04-24 04:04:25 INFO tclean::::casa ########################################## 2026-04-24 04:04:25 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:04:25 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 ) 2026-04-24 04:04:25 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:04:25 INFO SynthesisImagerVi2::selectData MS : datacopy.ms | [Opened in readonly mode] 2026-04-24 04:04:25 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-04-24 04:04:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_pre] : 2026-04-24 04:04:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_pre] : 2026-04-24 04:04:25 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:04:25 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-04-24 04:04:25 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_pre] with ftmachine : wprojectft 2026-04-24 04:04:25 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 47.8 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:04:25 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:04:25 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_pre] : hogbom 2026-04-24 04:04:25 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:04:25 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-04-24 04:04:25 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-04-24 04:04:25 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-04-24 04:04:25 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-04-24 04:04:43 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 2026-04-24 04:04:43 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 64265 MB 0%....10....20....30....40....50....60....70....80....90....100% 2026-04-24 04:04:50 INFO SIImageStore::calcSensitivity [im2_pre] Theoretical sensitivity (Jy/bm):0.00204403 2026-04-24 04:04:50 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.127354 2026-04-24 04:04:50 INFO SIImageStore::printBeamSet Beam : 54.8469 arcsec, 48.7749 arcsec, 82.835 deg 2026-04-24 04:04:51 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:05:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:05:22 INFO task_tclean::SDAlgorithmBase::restore [im2_pre] : Restoring model image. 2026-04-24 04:05:22 WARN task_tclean::SIImageStore::restore (file /source/casa6/casatools/src/code/synthesis/ImagerObjects/SIImageStore.cc, line 2345) Restoring with an empty model image. Only residuals will be processed to form the output restored image. 2026-04-24 04:05:24 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.8469 arcsec, 48.7749 arcsec, 82.835 deg 2026-04-24 04:05:25 INFO tclean::::casa Searching for images with prefix 'im2_pre'... Found these, writing history into them: ['im2_pre.sumwt', 'im2_pre.model', 'im2_pre.image', 'im2_pre.pb', 'im2_pre.psf', 'im2_pre.residual'] 2026-04-24 04:05:27 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:04:24.536348 End time: 2026-04-24 04:05:26.828021 2026-04-24 04:05:27 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:05:27 INFO tclean::::casa ########################################## 2026-04-24 04:05:27 INFO tclean::::casa ########################################## 2026-04-24 04:05:27 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:05:27 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 ) 2026-04-24 04:05:27 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:05:27 INFO SynthesisImagerVi2::selectData MS : post_phaseshift.ms | [Opened in readonly mode] 2026-04-24 04:05:27 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-04-24 04:05:27 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift] : 2026-04-24 04:05:27 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift] : 2026-04-24 04:05:27 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:05:27 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-04-24 04:05:27 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_post_phaseshift] with ftmachine : wprojectft 2026-04-24 04:05:27 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 47.78 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:05:27 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:05:27 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_post_phaseshift] : hogbom 2026-04-24 04:05:27 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:05:28 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-04-24 04:05:28 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-04-24 04:05:28 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-04-24 04:05:28 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-04-24 04:05:44 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 2026-04-24 04:05:44 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 64265 MB 2026-04-24 04:05:47 INFO SIImageStore::calcSensitivity [im2_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00204403 2026-04-24 04:05:48 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.123917 2026-04-24 04:05:48 INFO SIImageStore::printBeamSet Beam : 54.3737 arcsec, 48.741 arcsec, 82.2249 deg 2026-04-24 04:05:48 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:05:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:05:52 INFO task_tclean::SDAlgorithmBase::restore [im2_post_phaseshift] : Restoring model image. 2026-04-24 04:05:52 WARN task_tclean::SIImageStore::restore (file /source/casa6/casatools/src/code/synthesis/ImagerObjects/SIImageStore.cc, line 2345) Restoring with an empty model image. Only residuals will be processed to form the output restored image. 2026-04-24 04:05:53 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.3737 arcsec, 48.741 arcsec, 82.2249 deg 2026-04-24 04:05:53 INFO tclean::::casa Searching for images with prefix 'im2_post_phaseshift'... Found these, writing history into them: ['im2_post_phaseshift.residual', 'im2_post_phaseshift.sumwt', 'im2_post_phaseshift.pb', 'im2_post_phaseshift.image', 'im2_post_phaseshift.model', 'im2_post_phaseshift.psf'] 2026-04-24 04:05:57 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:05:26.875549 End time: 2026-04-24 04:05:56.745292 2026-04-24 04:05:57 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:05:57 INFO tclean::::casa ########################################## 2026-04-24 04:05:57 INFO tclean::::casa ########################################## 2026-04-24 04:05:57 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:05:57 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 ) 2026-04-24 04:05:57 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:05:57 INFO SynthesisImagerVi2::selectData MS : post_phaseshift.ms | [Opened in readonly mode] 2026-04-24 04:05:57 INFO SynthesisImagerVi2::selectData NRows selected : 63180 2026-04-24 04:05:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift_tclean_phasecenter] : 2026-04-24 04:05:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im2_post_phaseshift_tclean_phasecenter] : 2026-04-24 04:05:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:05:57 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [1.49998e+09] at [0] with increment [1.99998e+09] 2026-04-24 04:05:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im2_post_phaseshift_tclean_phasecenter] with ftmachine : wprojectft 2026-04-24 04:05:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 47.78 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:05:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:05:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im2_post_phaseshift_tclean_phasecenter] : hogbom 2026-04-24 04:05:57 INFO SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:05:58 INFO WPConvFunc::findConvFunction W projection using 128 planes 2026-04-24 04:05:58 INFO WPConvFunc::findConvFunction Using maximum possible W = 10313.2 (wavelengths) 2026-04-24 04:05:58 INFO WPConvFunc::findConvFunction Typical wavelength = 0.299796 (m) 2026-04-24 04:05:58 INFO WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.639422 wavelengths per pixel 2026-04-24 04:06:14 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 2026-04-24 04:06:14 INFO WPConvFunc::findConvFunction Memory used in gridding function = 7 MB from maximum 64265 MB 2026-04-24 04:06:17 INFO SIImageStore::calcSensitivity [im2_post_phaseshift_tclean_phasecenter] Theoretical sensitivity (Jy/bm):0.00204403 2026-04-24 04:06:17 INFO SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.118929 2026-04-24 04:06:17 INFO SIImageStore::printBeamSet Beam : 54.8469 arcsec, 48.775 arcsec, 82.8349 deg 2026-04-24 04:06:17 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:06:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:06:22 INFO task_tclean::SDAlgorithmBase::restore [im2_post_phaseshift_tclean_phasecenter] : Restoring model image. 2026-04-24 04:06:22 WARN task_tclean::SIImageStore::restore (file /source/casa6/casatools/src/code/synthesis/ImagerObjects/SIImageStore.cc, line 2345) Restoring with an empty model image. Only residuals will be processed to form the output restored image. 2026-04-24 04:06:24 INFO task_tclean::SIImageStore::restore Beam for chan : 0 : 54.8469 arcsec, 48.775 arcsec, 82.8349 deg 2026-04-24 04:06:26 INFO tclean::::casa Searching for images with prefix 'im2_post_phaseshift_tclean_phasecenter'... Found these, writing history into them: ['im2_post_phaseshift_tclean_phasecenter.residual', 'im2_post_phaseshift_tclean_phasecenter.psf', 'im2_post_phaseshift_tclean_phasecenter.image', 'im2_post_phaseshift_tclean_phasecenter.model', 'im2_post_phaseshift_tclean_phasecenter.pb', 'im2_post_phaseshift_tclean_phasecenter.sumwt'] 2026-04-24 04:06:28 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:05:56.786542 End time: 2026-04-24 04:06:28.164758 2026-04-24 04:06:28 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:06:28 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} .2026-04-24 04:06:30 INFO phaseshift::::casa ########################################## 2026-04-24 04:06:30 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:06:30 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' ) 2026-04-24 04:06:30 INFO MSTransformManager::parseMsSpecParams Input file name is ngc_copy.ms 2026-04-24 04:06:30 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:06:30 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-24 04:06:30 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:06:30 INFO MSTransformManager::parseDataSelParams spw selection is 1 2026-04-24 04:06:30 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:06:30 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:06:30 INFO MSTransformManager::initDataSelectionParams Selected SPWs Ids are Axis Lengths: [1, 4] (NB: Matrix in Row/Column order) 2026-04-24 04:06:30 INFO MSTransformManager::initDataSelectionParams+ [1, 0, 4, 1] 2026-04-24 04:06:30 INFO MSTransformManager::open Select data 2026-04-24 04:06:30 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:06:30 INFO MSTransformDataHandler::makeSelection 13338 out of 26676 rows are going to be considered due to the selection criteria. 2026-04-24 04:06:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:06:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 23h11m54 61d10m54' successfully parsed 2026-04-24 04:06:33 INFO phaseshift::::casa Shift phase center 2026-04-24 04:06:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:06:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:06:29.706416 End time: 2026-04-24 04:06:33.972815 2026-04-24 04:06:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:06:34 INFO phaseshift::::casa ########################################## .2026-04-24 04:06:35 INFO phaseshift::::casa ########################################## 2026-04-24 04:06:35 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:06:35 INFO phaseshift::::casa phaseshift( vis='datacopy.ms', outputvis='phaseshiftout.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-04-24 04:06:35 INFO MSTransformManager::parseMsSpecParams Input file name is datacopy.ms 2026-04-24 04:06:35 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:06:35 INFO MSTransformManager::parseMsSpecParams Output file name is phaseshiftout.ms 2026-04-24 04:06:35 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:06:35 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:06:35 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:06:35 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:06:35 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:06:35 INFO MSTransformManager::open Select data 2026-04-24 04:06:35 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:06:40 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:06:40 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-04-24 04:06:40 INFO phaseshift::::casa Shift phase center 2026-04-24 04:06:42 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:06:42 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:06:35.102260 End time: 2026-04-24 04:06:41.998491 2026-04-24 04:06:42 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:06:42 INFO phaseshift::::casa ########################################## .2026-04-24 04:06:43 INFO phaseshift::::casa ########################################## 2026-04-24 04:06:43 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:06:43 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' ) 2026-04-24 04:06:43 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:06:43 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:06:43 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:06:43 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:06:43 INFO MSTransformManager::parseDataSelParams field selection is 0 2026-04-24 04:06:43 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:06:43 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:06:43 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:06:43 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:06:43 INFO MSTransformManager::open Select data 2026-04-24 04:06:43 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:06:43 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-04-24 04:06:48 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:06:48 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-04-24 04:06:48 INFO phaseshift::::casa Shift phase center 2026-04-24 04:06:48 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:06:48 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:06:42.952495 End time: 2026-04-24 04:06:48.345102 2026-04-24 04:06:48 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:06:48 INFO phaseshift::::casa ########################################## 2026-04-24 04:06:48 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-04-24 04:06:49 INFO tclean::::casa ########################################## 2026-04-24 04:06:49 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:06:49 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 ) 2026-04-24 04:06:49 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:06:49 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:06:49 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-04-24 04:06:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:06:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:06:49 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:06:49 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99981e+08] at [0] with increment [9.99998e+07] 2026-04-24 04:06:49 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:06:49 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.78 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:06:49 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:06:49 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:06:49 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:06:51 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-04-24 04:06:51 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.030419 2026-04-24 04:06:51 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-04-24 04:06:51 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:06:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:06:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:06:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:06:54 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:06:54 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:06:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6347251534461975, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:06:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.634725, CycleNiter=20, Gain=0.3 2026-04-24 04:06:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:06:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:06:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:06:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:06:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07467404007911682, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:06:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.074674, CycleNiter=14, Gain=0.3 2026-04-24 04:06:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-04-24 04:06:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:06:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:06:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-04-24 04:06:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00878525897860527, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:06:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00878526, CycleNiter=8, Gain=0.3 2026-04-24 04:06:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-04-24 04:06:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:06:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:07:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814184, over full image : 0.00814184 2026-04-24 04:07:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0010335649130865932, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:07:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00103356, CycleNiter=2, Gain=0.3 2026-04-24 04:07:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814184->0.00279265, Reached cycleniter. 2026-04-24 04:07:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:07:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:07:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279276, over full image : 0.00279276 2026-04-24 04:07:01 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:07:01 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:07:01 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:07:02 INFO SIImageStore::restore Beam for chan : 0 : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-04-24 04:07:02 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:07:03 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:06:48.512900 End time: 2026-04-24 04:07:03.362825 2026-04-24 04:07:03 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:07:03 INFO tclean::::casa ########################################## 2026-04-24 04:07:03 INFO imstat::::casa ########################################## 2026-04-24 04:07:03 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:07:03 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-24 04:07:03 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:07:03 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:07:03 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:07:03 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:07:03 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:07:03 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) 2026-04-24 04:07:03 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:07:03 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:07:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:07:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:07:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz 2026-04-24 04:07:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz 2026-04-24 04:07:03 INFO imstat:::: Values --- 2026-04-24 04:07:03 INFO imstat:::: -- flux density [flux]: 4.99409 Jy 2026-04-24 04:07:03 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:07:03 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:07:03 INFO imstat:::: -- minimum value [min]: -0.00012283 Jy/beam 2026-04-24 04:07:03 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-04-24 04:07:03 INFO imstat:::: -- position of min value (pixel) [minpos]: [100, 55, 0, 0] 2026-04-24 04:07:03 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 9.99981e+08Hz 2026-04-24 04:07:03 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:09.479, +39.56.47.897, I, 9.99981e+08Hz 2026-04-24 04:07:03 INFO imstat:::: -- Sum of pixel values [sum]: 605.961 Jy/beam 2026-04-24 04:07:03 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1516.75 Jy/beam.Jy/beam 2026-04-24 04:07:03 INFO imstat:::: Statistics --- 2026-04-24 04:07:03 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00924623 Jy/beam 2026-04-24 04:07:03 INFO imstat:::: -- Variance of the pixel values : 0.0230586 Jy/beam 2026-04-24 04:07:03 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.15185 Jy/beam 2026-04-24 04:07:03 INFO imstat:::: -- Root mean square [rms]: 0.152131 Jy/beam 2026-04-24 04:07:03 INFO imstat:::: -- Median of the pixel values [median]: -2.09007e-05 Jy/beam 2026-04-24 04:07:03 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 3.00259e-05 Jy/beam 2026-04-24 04:07:03 INFO imstat:::: -- IQR [quartile]: 6.1616e-05 Jy/beam 2026-04-24 04:07:03 INFO imstat:::: -- First quartile [q1]: -4.79744e-05 Jy/beam 2026-04-24 04:07:03 INFO imstat:::: -- Third quartile [q3]: 1.36416e-05 Jy/beam 2026-04-24 04:07:03 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:07:03 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:07:03 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:07:03 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:07:03 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:07:03 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:07:03 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 2026-04-24 04:07:03 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:07:03.392784 End time: 2026-04-24 04:07:03.432293 2026-04-24 04:07:03 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:07:03 INFO imstat::::casa ########################################## 2026-04-24 04:07:03 INFO phaseshift::::casa ########################################## 2026-04-24 04:07:03 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:07:03 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' ) 2026-04-24 04:07:03 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:07:03 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:07:03 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:07:03 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:07:03 INFO MSTransformManager::parseDataSelParams field selection is fake 2026-04-24 04:07:03 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:07:03 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:07:03 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:07:03 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:07:03 INFO MSTransformManager::open Select data 2026-04-24 04:07:03 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:07:03 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-04-24 04:07:07 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:07:07 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-04-24 04:07:07 INFO phaseshift::::casa Shift phase center 2026-04-24 04:07:08 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:07:08 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:07:03.451204 End time: 2026-04-24 04:07:07.977142 2026-04-24 04:07:08 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:07:08 INFO phaseshift::::casa ########################################## 2026-04-24 04:07:08 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data.ms... 2026-04-24 04:07:08 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-04-24 04:07:08 INFO tclean::::casa ########################################## 2026-04-24 04:07:08 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:07:08 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 ) 2026-04-24 04:07:08 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:07:08 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:07:08 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-04-24 04:07:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:07:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:07:08 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:07:08 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99981e+08] at [0] with increment [9.99998e+07] 2026-04-24 04:07:08 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:07:08 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.78 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:07:08 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:07:08 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:07:08 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:07:09 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-04-24 04:07:09 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028987 2026-04-24 04:07:09 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-04-24 04:07:09 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:07:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:07:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:07:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:07:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:07:11 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:07:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6347251534461975, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:07:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.634725, CycleNiter=20, Gain=0.3 2026-04-24 04:07:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:07:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:07:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:07:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:07:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07467404007911682, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:07:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.074674, CycleNiter=14, Gain=0.3 2026-04-24 04:07:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-04-24 04:07:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:07:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:07:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-04-24 04:07:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00878525897860527, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:07:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00878526, CycleNiter=8, Gain=0.3 2026-04-24 04:07:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-04-24 04:07:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:07:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:07:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814184, over full image : 0.00814184 2026-04-24 04:07:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0010335649130865932, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:07:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00103356, CycleNiter=2, Gain=0.3 2026-04-24 04:07:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814184->0.00279265, Reached cycleniter. 2026-04-24 04:07:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:07:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:07:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279276, over full image : 0.00279276 2026-04-24 04:07:17 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:07:17 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:07:17 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:07:18 INFO SIImageStore::restore Beam for chan : 0 : 88.8546 arcsec, 77.1301 arcsec, -77.9234 deg 2026-04-24 04:07:19 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:07:20 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:07:08.070112 End time: 2026-04-24 04:07:19.826210 2026-04-24 04:07:20 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:07:20 INFO tclean::::casa ########################################## 2026-04-24 04:07:20 INFO imstat::::casa ########################################## 2026-04-24 04:07:20 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:07:20 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 ) 2026-04-24 04:07:20 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:07:20 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:07:20 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:07:20 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:07:20 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:07:20 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) 2026-04-24 04:07:20 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:07:20 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:07:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:07:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:07:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 9.99981e+08Hz 2026-04-24 04:07:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 9.99981e+08Hz 2026-04-24 04:07:20 INFO imstat:::: Values --- 2026-04-24 04:07:20 INFO imstat:::: -- flux density [flux]: 4.99409 Jy 2026-04-24 04:07:20 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:07:20 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:07:20 INFO imstat:::: -- minimum value [min]: -0.00012283 Jy/beam 2026-04-24 04:07:20 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-04-24 04:07:20 INFO imstat:::: -- position of min value (pixel) [minpos]: [100, 55, 0, 0] 2026-04-24 04:07:20 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 9.99981e+08Hz 2026-04-24 04:07:20 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:09.479, +39.56.47.897, I, 9.99981e+08Hz 2026-04-24 04:07:20 INFO imstat:::: -- Sum of pixel values [sum]: 605.961 Jy/beam 2026-04-24 04:07:20 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1516.75 Jy/beam.Jy/beam 2026-04-24 04:07:20 INFO imstat:::: Statistics --- 2026-04-24 04:07:20 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00924623 Jy/beam 2026-04-24 04:07:20 INFO imstat:::: -- Variance of the pixel values : 0.0230586 Jy/beam 2026-04-24 04:07:20 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.15185 Jy/beam 2026-04-24 04:07:20 INFO imstat:::: -- Root mean square [rms]: 0.152131 Jy/beam 2026-04-24 04:07:20 INFO imstat:::: -- Median of the pixel values [median]: -2.09007e-05 Jy/beam 2026-04-24 04:07:20 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 3.00259e-05 Jy/beam 2026-04-24 04:07:20 INFO imstat:::: -- IQR [quartile]: 6.1616e-05 Jy/beam 2026-04-24 04:07:20 INFO imstat:::: -- First quartile [q1]: -4.79744e-05 Jy/beam 2026-04-24 04:07:20 INFO imstat:::: -- Third quartile [q3]: 1.36416e-05 Jy/beam 2026-04-24 04:07:20 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:07:20 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:07:20 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:07:20 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:07:20 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:07:20 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:07:20 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 2026-04-24 04:07:20 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:07:19.832012 End time: 2026-04-24 04:07:19.880554 2026-04-24 04:07:20 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:07:20 INFO imstat::::casa ########################################## 2026-04-24 04:07:20 INFO phaseshift::::casa ########################################## 2026-04-24 04:07:20 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:07:20 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40.108888889deg' ) 2026-04-24 04:07:20 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:07:20 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:07:20 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:07:20 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:07:20 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:07:20 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:07:20 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:07:20 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:07:20 INFO MSTransformManager::open Select data 2026-04-24 04:07:20 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:07:23 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:07:23 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.108888889deg' successfully parsed 2026-04-24 04:07:23 INFO phaseshift::::casa Shift phase center 2026-04-24 04:07:25 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:07:25 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:07:19.901846 End time: 2026-04-24 04:07:25.360433 2026-04-24 04:07:25 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:07:25 INFO phaseshift::::casa ########################################## 2026-04-24 04:07:25 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-04-24 04:07:26 INFO tclean::::casa ########################################## 2026-04-24 04:07:26 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:07:26 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 ) 2026-04-24 04:07:26 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:07:26 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:07:26 INFO SynthesisImagerVi2::selectData NRows selected : 7020 2026-04-24 04:07:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:07:26 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:07:26 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:07:26 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:07:26 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:07:26 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.78 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:07:26 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:07:26 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:07:26 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:07:28 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00843949 2026-04-24 04:07:28 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026517 2026-04-24 04:07:28 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.9193 arcsec, 77.6082 arcsec, 88.5528 deg 2026-04-24 04:07:28 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:07:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:07:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:07:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:07:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:07:30 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:07:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6069034934043884, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:07:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.606903, CycleNiter=20, Gain=0.3 2026-04-24 04:07:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:07:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:07:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:07:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:07:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07140088081359863, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:07:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0714009, CycleNiter=14, Gain=0.3 2026-04-24 04:07:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692058, Reached cyclethreshold. 2026-04-24 04:07:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:07:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:07:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692053, over full image : 0.0692053 2026-04-24 04:07:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.00840018317103386, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:07:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00840018, CycleNiter=8, Gain=0.3 2026-04-24 04:07:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692053->0.00814193, Reached cyclethreshold. 2026-04-24 04:07:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:07:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:07:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814189, over full image : 0.00814189 2026-04-24 04:07:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009882674785330892, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:07:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000988267, CycleNiter=2, Gain=0.3 2026-04-24 04:07:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814189->0.00279267, Reached cycleniter. 2026-04-24 04:07:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:07:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:07:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0027928, over full image : 0.0027928 2026-04-24 04:07:36 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:07:36 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:07:36 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:07:37 INFO SIImageStore::restore Beam for chan : 0 : 88.9193 arcsec, 77.6082 arcsec, 88.5528 deg 2026-04-24 04:07:37 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:07:38 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:07:25.667509 End time: 2026-04-24 04:07:38.089493 2026-04-24 04:07:38 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:07:38 INFO tclean::::casa ########################################## 2026-04-24 04:07:38 INFO imstat::::casa ########################################## 2026-04-24 04:07:38 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:07:38 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 ) 2026-04-24 04:07:38 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:07:38 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:07:38 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:07:38 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:07:38 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:07:38 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) 2026-04-24 04:07:38 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:07:38 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:07:38 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:07:38 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:07:38 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.888, +39.49.25.864, I, 999981604.64Hz 2026-04-24 04:07:38 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.069, +40.23.25.888, I, 999981604.64Hz 2026-04-24 04:07:38 INFO imstat:::: Values --- 2026-04-24 04:07:38 INFO imstat:::: -- flux density [flux]: 4.99444 Jy 2026-04-24 04:07:38 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:07:38 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:07:38 INFO imstat:::: -- minimum value [min]: -9.70533e-05 Jy/beam 2026-04-24 04:07:38 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 124, 0, 0] 2026-04-24 04:07:38 INFO imstat:::: -- position of min value (pixel) [minpos]: [158, 70, 0, 0] 2026-04-24 04:07:38 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981604.64Hz 2026-04-24 04:07:38 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:29.120, +39.58.47.882, I, 999981604.64Hz 2026-04-24 04:07:38 INFO imstat:::: -- Sum of pixel values [sum]: 610.203 Jy/beam 2026-04-24 04:07:38 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1527.26 Jy/beam.Jy/beam 2026-04-24 04:07:38 INFO imstat:::: Statistics --- 2026-04-24 04:07:38 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00931096 Jy/beam 2026-04-24 04:07:38 INFO imstat:::: -- Variance of the pixel values : 0.0232178 Jy/beam 2026-04-24 04:07:38 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152374 Jy/beam 2026-04-24 04:07:38 INFO imstat:::: -- Root mean square [rms]: 0.152657 Jy/beam 2026-04-24 04:07:38 INFO imstat:::: -- Median of the pixel values [median]: -1.85752e-05 Jy/beam 2026-04-24 04:07:38 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.83975e-05 Jy/beam 2026-04-24 04:07:38 INFO imstat:::: -- IQR [quartile]: 3.74524e-05 Jy/beam 2026-04-24 04:07:38 INFO imstat:::: -- First quartile [q1]: -3.53147e-05 Jy/beam 2026-04-24 04:07:38 INFO imstat:::: -- Third quartile [q3]: 2.13765e-06 Jy/beam 2026-04-24 04:07:38 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:07:38 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:07:38 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:07:38 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:07:38 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:07:38 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:07:38 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 2026-04-24 04:07:38 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:07:38.095074 End time: 2026-04-24 04:07:38.138358 2026-04-24 04:07:38 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:07:38 INFO imstat::::casa ########################################## 2026-04-24 04:07:38 INFO phaseshift::::casa ########################################## 2026-04-24 04:07:38 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:07:38 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' ) 2026-04-24 04:07:38 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:07:38 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:07:38 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:07:38 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:07:38 INFO MSTransformManager::parseDataSelParams field selection is 1 2026-04-24 04:07:38 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:07:38 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:07:38 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:07:38 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:07:38 INFO MSTransformManager::open Select data 2026-04-24 04:07:38 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:07:38 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-04-24 04:07:42 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:07:42 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 50.108888889deg' successfully parsed 2026-04-24 04:07:42 INFO phaseshift::::casa Shift phase center 2026-04-24 04:07:43 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:07:43 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:07:38.160021 End time: 2026-04-24 04:07:42.598908 2026-04-24 04:07:43 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:07:43 INFO phaseshift::::casa ########################################## 2026-04-24 04:07:43 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-04-24 04:07:43 INFO tclean::::casa ########################################## 2026-04-24 04:07:43 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:07:43 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 ) 2026-04-24 04:07:43 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:07:43 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:07:43 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-04-24 04:07:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:07:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:07:43 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:07:43 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99968e+08] at [0] with increment [9.99982e+07] 2026-04-24 04:07:43 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:07:43 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.78 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:07:43 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:07:43 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:07:43 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:07:44 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-04-24 04:07:44 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025207 2026-04-24 04:07:44 INFO task_tclean::SIImageStore::printBeamSet Beam : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-04-24 04:07:44 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:07:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:07:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 0.290316 2026-04-24 04:07:46 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:07:46 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:07:46 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.290316, over full image : 0.290316 2026-04-24 04:07:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.03697436675429344, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:07:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0369744, CycleNiter=20, Gain=0.3 2026-04-24 04:07:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->20 [20], model=0->1.38616, peakres=0.290316->0.18329, Reached cycleniter. 2026-04-24 04:07:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:07:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:07:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.180075, over full image : 0.180075 2026-04-24 04:07:47 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:07:47 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:07:47 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:07:49 INFO SIImageStore::restore Beam for chan : 0 : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-04-24 04:07:49 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:07:50 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:07:42.799533 End time: 2026-04-24 04:07:50.151704 2026-04-24 04:07:50 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:07:50 INFO tclean::::casa ########################################## 2026-04-24 04:07:50 INFO imstat::::casa ########################################## 2026-04-24 04:07:50 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:07:50 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-24 04:07:50 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:07:50 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:07:50 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:07:50 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:07:50 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:07:50 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) 2026-04-24 04:07:50 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:07:50 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:07:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:07:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:07:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz 2026-04-24 04:07:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz 2026-04-24 04:07:50 INFO imstat:::: Values --- 2026-04-24 04:07:50 INFO imstat:::: -- flux density [flux]: -0.242513 Jy 2026-04-24 04:07:50 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:07:50 INFO imstat:::: -- maximum value [max]: 0.285872 Jy/beam 2026-04-24 04:07:50 INFO imstat:::: -- minimum value [min]: -0.1468 Jy/beam 2026-04-24 04:07:50 INFO imstat:::: -- position of max value (pixel) [maxpos]: [54, 120, 0, 0] 2026-04-24 04:07:50 INFO imstat:::: -- position of min value (pixel) [minpos]: [148, 28, 0, 0] 2026-04-24 04:07:50 INFO imstat:::: -- position of max value (world) [maxposf]: 19:54:51.516, +50.05.26.984, I, 9.99968e+08Hz 2026-04-24 04:07:50 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:33.445, +49.53.11.924, I, 9.99968e+08Hz 2026-04-24 04:07:50 INFO imstat:::: -- Sum of pixel values [sum]: -29.9309 Jy/beam 2026-04-24 04:07:50 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 233.452 Jy/beam.Jy/beam 2026-04-24 04:07:50 INFO imstat:::: Statistics --- 2026-04-24 04:07:50 INFO imstat:::: -- Mean of the pixel values [mean]: -0.00045671 Jy/beam 2026-04-24 04:07:50 INFO imstat:::: -- Variance of the pixel values : 0.00356204 Jy/beam 2026-04-24 04:07:50 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0596828 Jy/beam 2026-04-24 04:07:50 INFO imstat:::: -- Root mean square [rms]: 0.0596841 Jy/beam 2026-04-24 04:07:50 INFO imstat:::: -- Median of the pixel values [median]: -0.00646386 Jy/beam 2026-04-24 04:07:50 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.0391011 Jy/beam 2026-04-24 04:07:50 INFO imstat:::: -- IQR [quartile]: 0.0789052 Jy/beam 2026-04-24 04:07:50 INFO imstat:::: -- First quartile [q1]: -0.0432754 Jy/beam 2026-04-24 04:07:50 INFO imstat:::: -- Third quartile [q3]: 0.0356299 Jy/beam 2026-04-24 04:07:50 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:07:50 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:07:50 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:07:50 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:07:50 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:07:50 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:07:50 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 2026-04-24 04:07:50 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:07:50.155675 End time: 2026-04-24 04:07:50.204678 2026-04-24 04:07:50 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:07:50 INFO imstat::::casa ########################################## 2026-04-24 04:07:50 INFO phaseshift::::casa ########################################## 2026-04-24 04:07:50 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:07:50 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' ) 2026-04-24 04:07:50 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:07:50 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:07:50 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:07:50 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:07:50 INFO MSTransformManager::parseDataSelParams field selection is pretend 2026-04-24 04:07:50 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:07:50 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:07:50 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:07:50 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:07:50 INFO MSTransformManager::open Select data 2026-04-24 04:07:50 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:07:50 INFO MSTransformDataHandler::makeSelection 3510 out of 7020 rows are going to be considered due to the selection criteria. 2026-04-24 04:07:54 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:07:54 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 50.108888889deg' successfully parsed 2026-04-24 04:07:54 INFO phaseshift::::casa Shift phase center 2026-04-24 04:07:54 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:07:54 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:07:50.227837 End time: 2026-04-24 04:07:54.421477 2026-04-24 04:07:54 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:07:54 INFO phaseshift::::casa ########################################## 2026-04-24 04:07:54 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data.ms... 2026-04-24 04:07:54 INFO msmetadata_cmpt.cc::open Performing internal consistency checks on sim_data_pshift.ms... 2026-04-24 04:07:55 INFO tclean::::casa ########################################## 2026-04-24 04:07:55 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:07:55 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 ) 2026-04-24 04:07:55 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:07:55 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:07:55 INFO SynthesisImagerVi2::selectData NRows selected : 3510 2026-04-24 04:07:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:07:55 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:07:55 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:07:55 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99968e+08] at [0] with increment [9.99982e+07] 2026-04-24 04:07:55 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:07:55 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.78 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:07:55 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:07:55 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:07:55 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:07:56 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.0119352 2026-04-24 04:07:56 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026023 2026-04-24 04:07:56 INFO task_tclean::SIImageStore::printBeamSet Beam : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-04-24 04:07:56 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:07:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:07:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 0.290316 2026-04-24 04:07:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:07:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:07:58 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.290316, over full image : 0.290316 2026-04-24 04:07:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.03697436675429344, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:07:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0369744, CycleNiter=20, Gain=0.3 2026-04-24 04:07:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->20 [20], model=0->1.38616, peakres=0.290316->0.18329, Reached cycleniter. 2026-04-24 04:07:59 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:07:59 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:07:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.180075, over full image : 0.180075 2026-04-24 04:07:59 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:07:59 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:07:59 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:08:00 INFO SIImageStore::restore Beam for chan : 0 : 89.6341 arcsec, 77.7728 arcsec, 83.0376 deg 2026-04-24 04:08:00 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:08:02 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:07:54.519783 End time: 2026-04-24 04:08:02.316894 2026-04-24 04:08:02 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:08:02 INFO tclean::::casa ########################################## 2026-04-24 04:08:02 INFO imstat::::casa ########################################## 2026-04-24 04:08:02 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:08:02 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 ) 2026-04-24 04:08:02 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:08:02 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:08:02 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:08:02 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:08:02 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:08:02 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz to 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz) 2026-04-24 04:08:02 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:08:02 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:08:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:08:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:08:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:35.817, +49.49.24.973, I, 9.99968e+08Hz 2026-04-24 04:08:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:03.760, +50.23.24.993, I, 9.99968e+08Hz 2026-04-24 04:08:02 INFO imstat:::: Values --- 2026-04-24 04:08:02 INFO imstat:::: -- flux density [flux]: -0.242513 Jy 2026-04-24 04:08:02 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:08:02 INFO imstat:::: -- maximum value [max]: 0.285872 Jy/beam 2026-04-24 04:08:02 INFO imstat:::: -- minimum value [min]: -0.1468 Jy/beam 2026-04-24 04:08:02 INFO imstat:::: -- position of max value (pixel) [maxpos]: [54, 120, 0, 0] 2026-04-24 04:08:02 INFO imstat:::: -- position of min value (pixel) [minpos]: [148, 28, 0, 0] 2026-04-24 04:08:02 INFO imstat:::: -- position of max value (world) [maxposf]: 19:54:51.516, +50.05.26.984, I, 9.99968e+08Hz 2026-04-24 04:08:02 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:33.445, +49.53.11.924, I, 9.99968e+08Hz 2026-04-24 04:08:02 INFO imstat:::: -- Sum of pixel values [sum]: -29.9309 Jy/beam 2026-04-24 04:08:02 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 233.452 Jy/beam.Jy/beam 2026-04-24 04:08:02 INFO imstat:::: Statistics --- 2026-04-24 04:08:02 INFO imstat:::: -- Mean of the pixel values [mean]: -0.00045671 Jy/beam 2026-04-24 04:08:02 INFO imstat:::: -- Variance of the pixel values : 0.00356204 Jy/beam 2026-04-24 04:08:02 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0596828 Jy/beam 2026-04-24 04:08:02 INFO imstat:::: -- Root mean square [rms]: 0.0596841 Jy/beam 2026-04-24 04:08:02 INFO imstat:::: -- Median of the pixel values [median]: -0.00646386 Jy/beam 2026-04-24 04:08:02 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.0391011 Jy/beam 2026-04-24 04:08:02 INFO imstat:::: -- IQR [quartile]: 0.0789052 Jy/beam 2026-04-24 04:08:02 INFO imstat:::: -- First quartile [q1]: -0.0432754 Jy/beam 2026-04-24 04:08:02 INFO imstat:::: -- Third quartile [q3]: 0.0356299 Jy/beam 2026-04-24 04:08:02 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:08:02 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:08:02 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:08:02 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:08:02 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:08:02 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:08:02 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 -2.993095e+01 -4.567100e-04 5.968411e-02 5.968282e-02 -1.468002e-01 2.858716e-01 2026-04-24 04:08:02 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:08:02.322399 End time: 2026-04-24 04:08:02.370341 2026-04-24 04:08:02 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:08:02 INFO imstat::::casa ########################################## .2026-04-24 04:08:03 INFO tclean::::casa ########################################## 2026-04-24 04:08:03 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:08:03 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 ) 2026-04-24 04:08:03 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:08:03 INFO SynthesisImagerVi2::selectData MS : sim_data.ms | [Opened in readonly mode] 2026-04-24 04:08:03 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:08:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_orig] : 2026-04-24 04:08:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_orig] : 2026-04-24 04:08:03 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:08:03 INFO SynthesisImagerVi2::defineImage Shape: [2048, 2048, 1, 1] Spectral: [9.99981e+08] at [0] with increment [1e+08] 2026-04-24 04:08:03 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_orig] with ftmachine : wprojectft 2026-04-24 04:08:03 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.3842 GB. Available mem.: 47.78 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:08:03 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:08:03 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_orig] : hogbom 2026-04-24 04:08:03 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:08:03 INFO task_tclean::WPConvFunc::findConvFunction W projection using 128 planes 2026-04-24 04:08:03 INFO task_tclean::WPConvFunc::findConvFunction Using maximum possible W = 6445.78 (wavelengths) 2026-04-24 04:08:03 INFO task_tclean::WPConvFunc::findConvFunction Typical wavelength = 0.299799 (m) 2026-04-24 04:08:03 INFO task_tclean::WPConvFunc::findConvFunction Scaling in W (at maximum W) = 0.399639 wavelengths per pixel 2026-04-24 04:08:20 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 2026-04-24 04:08:20 INFO task_tclean::WPConvFunc::findConvFunction Memory used in gridding function = 14 MB from maximum 64265 MB 2026-04-24 04:08:22 INFO task_tclean::SIImageStore::calcSensitivity [im_orig] Theoretical sensitivity (Jy/bm):0.00889437 2026-04-24 04:08:22 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.092613 2026-04-24 04:08:22 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.6975 arcsec, 77.5413 arcsec, -89.6046 deg 2026-04-24 04:08:22 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:08:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:08:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 4.94899 2026-04-24 04:08:27 INFO SynthesisDeconvolver::setupMask [im_orig] Initializing new mask to 1.0 for the full image 2026-04-24 04:08:27 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 % ] 2026-04-24 04:08:27 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 4.94899, over full image : 4.94899 2026-04-24 04:08:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.5971387624740601, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:08:27 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.597139, CycleNiter=20, Gain=0.3 2026-04-24 04:08:29 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->7 [7], model=0->4.6028, peakres=4.94899->0.435227, Reached cyclethreshold. 2026-04-24 04:08:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 7 iterations. 2026-04-24 04:08:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:08:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.45574, over full image : 0.45574 2026-04-24 04:08:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 13, 'cyclethreshold': 0.05498892068862915, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:08:32 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.0549889, CycleNiter=13, Gain=0.3 2026-04-24 04:08:33 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->7 [7], model=4.6028->5.02619, peakres=0.45574->0.0435268, Reached cyclethreshold. 2026-04-24 04:08:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 14 iterations. 2026-04-24 04:08:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:08:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0416506, over full image : 0.0416506 2026-04-24 04:08:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 6, 'cyclethreshold': 0.005025505553930998, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:08:37 INFO SDAlgorithmBase::deconvolve [im_orig] Run Hogbom minor-cycle | CycleThreshold=0.00502551, CycleNiter=6, Gain=0.3 2026-04-24 04:08:38 INFO SDAlgorithmBase::deconvolve [im_orig] iters=0->6 [6], model=5.02619->5.04001, peakres=0.0416506->0.0226678, Reached cycleniter. 2026-04-24 04:08:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:08:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:08:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.022671, over full image : 0.022671 2026-04-24 04:08:42 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:08:42 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:08:42 INFO SDAlgorithmBase::restore [im_orig] : Restoring model image. 2026-04-24 04:08:43 INFO SIImageStore::restore Beam for chan : 0 : 88.6975 arcsec, 77.5413 arcsec, -89.6046 deg 2026-04-24 04:08:44 INFO tclean::::casa Searching for images with prefix 'im_orig'... Found these, writing history into them: ['im_orig.model', 'im_orig.sumwt', 'im_orig.residual', 'im_orig.psf', 'im_orig.pb', 'im_orig.image', 'im_orig.mask'] 2026-04-24 04:08:52 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:08:02.637784 End time: 2026-04-24 04:08:51.627250 2026-04-24 04:08:52 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:08:52 INFO tclean::::casa ########################################## 2026-04-24 04:08:52 INFO imstat::::casa ########################################## 2026-04-24 04:08:52 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:08:52 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 ) 2026-04-24 04:08:52 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:08:52 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:08:52 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:08:52 INFO imstat::image::statistics Determining stats for image im_orig.image 2026-04-24 04:08:52 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:08:52 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) 2026-04-24 04:08:52 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:08:52 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:08:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:08:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [2047, 2047, 0, 0] 2026-04-24 04:08:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 20:11:05.220, +38.21.11.967, I, 999980841.3Hz 2026-04-24 04:08:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:47:03.322, +42.54.02.996, I, 999980841.3Hz 2026-04-24 04:08:52 INFO imstat:::: Values --- 2026-04-24 04:08:52 INFO imstat:::: -- flux density [flux]: 5.2713 Jy 2026-04-24 04:08:52 INFO imstat:::: -- number of points [npts]: 4.1943e+06 2026-04-24 04:08:52 INFO imstat:::: -- maximum value [max]: 4.97713 Jy/beam 2026-04-24 04:08:52 INFO imstat:::: -- minimum value [min]: -0.022671 Jy/beam 2026-04-24 04:08:52 INFO imstat:::: -- position of max value (pixel) [maxpos]: [1509, 773, 0, 0] 2026-04-24 04:08:52 INFO imstat:::: -- position of min value (pixel) [minpos]: [1708, 965, 0, 0] 2026-04-24 04:08:52 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.302, +40.06.02.372, I, 999980841.3Hz 2026-04-24 04:08:52 INFO imstat:::: -- position of min value (world) [minposf]: 19:51:28.525, +40.31.07.260, I, 999980841.3Hz 2026-04-24 04:08:52 INFO imstat:::: -- Sum of pixel values [sum]: 641.87 Jy/beam 2026-04-24 04:08:52 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1619.58 Jy/beam.Jy/beam 2026-04-24 04:08:52 INFO imstat:::: Statistics --- 2026-04-24 04:08:52 INFO imstat:::: -- Mean of the pixel values [mean]: 0.000153034 Jy/beam 2026-04-24 04:08:52 INFO imstat:::: -- Variance of the pixel values : 0.000386116 Jy/beam 2026-04-24 04:08:52 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.0196498 Jy/beam 2026-04-24 04:08:52 INFO imstat:::: -- Root mean square [rms]: 0.0196504 Jy/beam 2026-04-24 04:08:52 INFO imstat:::: -- Median of the pixel values [median]: 4.61875e-06 Jy/beam 2026-04-24 04:08:52 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 0.003161 Jy/beam 2026-04-24 04:08:52 INFO imstat:::: -- IQR [quartile]: 0.00632194 Jy/beam 2026-04-24 04:08:52 INFO imstat:::: -- First quartile [q1]: -0.00315521 Jy/beam 2026-04-24 04:08:52 INFO imstat:::: -- Third quartile [q3]: 0.00316673 Jy/beam 2026-04-24 04:08:52 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:08:52 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:08:52 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:08:52 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:08:52 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:08:52 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:08:52 INFO imstat::ImageStatsCalculator::statistics 4.194304e+06 6.418701e+02 1.530337e-04 1.965042e-02 1.964982e-02 -2.267100e-02 4.977134e+00 2026-04-24 04:08:52 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:08:51.631340 End time: 2026-04-24 04:08:52.187222 2026-04-24 04:08:52 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:08:52 INFO imstat::::casa ########################################## 2026-04-24 04:08:52 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:08:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:08:52 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) 2026-04-24 04:08:52 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:08:52 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:08:52 2026****** 2026-04-24 04:08:52 INFO ImageFitter::fit+ 2026-04-24 04:08:52 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:08:52 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_orig.image 2026-04-24 04:08:52 INFO ImageFitter::fit+ --- region: 2026-04-24 04:08:52 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:08:52 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:08:52 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:08:52 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:08:52 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:08:52 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:08:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:08:52 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) 2026-04-24 04:08:52 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29832 Jy 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00459192 Jy 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85855 Jy 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00458731 Jy 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ Fit on im_orig.image component 0 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.9885 +/- 0.0032 s (0.0367 arcsec along great circle) 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.0594 +/- 0.0281 arcsec 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ --- ra: 1509.4535 +/- 0.0046 pixels 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ --- dec: 772.7181 +/- 0.0035 pixels 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.4778 +/- 0.0014 arcmin 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.2915 +/- 0.0011 arcmin 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.42 +/- 0.26 deg 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.70 arcsec 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.54 arcsec 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ --- position angle: -89.60 deg 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ Component is a point source 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ An upper limit on its size cannot be determined 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ --- Integrated: 5.0049 +/- 0.0079 Jy 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ --- Peak: 5.0102 +/- 0.0046 Jy/beam 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:08:52 INFO ImageFitter::_fitLoop+ --- frequency: 999.9808 MHz (29.97982 cm) 2026-04-24 04:08:52 INFO phaseshift::::casa ########################################## 2026-04-24 04:08:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:08:52 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 40d06m00' ) 2026-04-24 04:08:52 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:08:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:08:52 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:08:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:08:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:08:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:08:52 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:08:52 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:08:52 INFO MSTransformManager::open Select data 2026-04-24 04:08:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:08:57 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:08:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40d06m00' successfully parsed 2026-04-24 04:08:57 INFO phaseshift::::casa Shift phase center 2026-04-24 04:08:58 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:08:58 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:08:52.272046 End time: 2026-04-24 04:08:57.795149 2026-04-24 04:08:58 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:08:58 INFO phaseshift::::casa ########################################## 2026-04-24 04:08:58 INFO tclean::::casa ########################################## 2026-04-24 04:08:58 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:08:58 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, 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 ) 2026-04-24 04:08:58 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:08:58 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:08:58 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:08:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:08:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:08:58 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:08:58 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:08:58 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:08:58 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:08:58 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:08:58 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:08:58 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:08:59 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:08:59 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026289 2026-04-24 04:08:59 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:08:59 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:09:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:09:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:09:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:09:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:09:01 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:09:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:09:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:09:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:09:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:09:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:09:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:09:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:09:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:09:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:09:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:09:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:09:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:09:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:09:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:09:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:09:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:09:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:09:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:09:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:09:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:09:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:09:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:09:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:09:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:09:05 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:09:05 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:09:05 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:09:06 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:09:06 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:09:08 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:08:57.937890 End time: 2026-04-24 04:09:07.917991 2026-04-24 04:09:08 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:09:08 INFO tclean::::casa ########################################## 2026-04-24 04:09:08 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:09:08 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:09:08 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) 2026-04-24 04:09:08 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:09:08 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:09:08 2026****** 2026-04-24 04:09:08 INFO ImageFitter::fit+ 2026-04-24 04:09:08 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:09:08 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:09:08 INFO ImageFitter::fit+ --- region: 2026-04-24 04:09:08 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:09:08 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:09:08 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:09:08 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:09:08 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:09:08 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:09:08 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:09:08 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) 2026-04-24 04:09:08 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:09:08 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:09:08 INFO imstat::::casa ########################################## 2026-04-24 04:09:08 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:09:08 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 ) 2026-04-24 04:09:08 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:09:08 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:09:08 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:09:08 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:09:08 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:09:08 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) 2026-04-24 04:09:08 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:09:08 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:09:08 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:09:08 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:09:08 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:09:08 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:09:08 INFO imstat:::: Values --- 2026-04-24 04:09:08 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:09:08 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:09:08 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:09:08 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-04-24 04:09:08 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:09:08 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:09:08 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:09:08 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:09:08 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:09:08 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:09:08 INFO imstat:::: Statistics --- 2026-04-24 04:09:08 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:09:08 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:09:08 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:09:08 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:09:08 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-04-24 04:09:08 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-04-24 04:09:08 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-04-24 04:09:08 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-04-24 04:09:08 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-04-24 04:09:08 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:09:08 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:09:08 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:09:08 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:09:08 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:09:08 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:09:08 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 2026-04-24 04:09:08 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:09:08.005275 End time: 2026-04-24 04:09:08.031282 2026-04-24 04:09:08 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:09:08 INFO imstat::::casa ########################################## 2026-04-24 04:09:08 INFO phaseshift::::casa ########################################## 2026-04-24 04:09:08 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:09:08 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 02:40:24.0000' ) 2026-04-24 04:09:08 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:09:08 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:09:08 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:09:08 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:09:08 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:09:08 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:09:08 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:09:08 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:09:08 INFO MSTransformManager::open Select data 2026-04-24 04:09:08 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:09:12 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 ".". 2026-04-24 04:09:12 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 02:40:24.0000' successfully parsed 2026-04-24 04:09:12 INFO phaseshift::::casa Shift phase center 2026-04-24 04:09:13 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:09:14 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:09:08.048609 End time: 2026-04-24 04:09:13.606826 2026-04-24 04:09:14 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:09:14 INFO phaseshift::::casa ########################################## 2026-04-24 04:09:14 INFO tclean::::casa ########################################## 2026-04-24 04:09:14 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:09:14 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 ) 2026-04-24 04:09:14 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:09:14 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:09:14 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:09:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:09:14 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:09:14 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:09:14 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:09:14 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:09:14 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:09:14 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:09:14 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:09:14 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:09:17 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:09:17 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028944 2026-04-24 04:09:17 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:09:17 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:09:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:09:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:09:20 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:09:20 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:09:20 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:09:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:09:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:09:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:09:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:09:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:09:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:09:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:09:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:09:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:09:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:09:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:09:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:09:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:09:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:09:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:09:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:09:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:09:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:09:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:09:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:09:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:09:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:09:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:09:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:09:25 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:09:25 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:09:25 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:09:26 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:09:26 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:09:27 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:09:13.667288 End time: 2026-04-24 04:09:27.209604 2026-04-24 04:09:27 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:09:27 INFO tclean::::casa ########################################## 2026-04-24 04:09:27 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:09:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:09:27 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) 2026-04-24 04:09:27 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:09:27 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:09:27 2026****** 2026-04-24 04:09:27 INFO ImageFitter::fit+ 2026-04-24 04:09:27 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:09:27 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:09:27 INFO ImageFitter::fit+ --- region: 2026-04-24 04:09:27 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:09:27 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:09:27 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:09:27 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:09:27 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:09:27 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:09:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:09:27 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) 2026-04-24 04:09:27 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:09:27 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:09:27 INFO imstat::::casa ########################################## 2026-04-24 04:09:27 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:09:27 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 ) 2026-04-24 04:09:27 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:09:27 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:09:27 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:09:27 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:09:27 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:09:27 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) 2026-04-24 04:09:27 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:09:27 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:09:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:09:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:09:27 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:09:27 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:09:27 INFO imstat:::: Values --- 2026-04-24 04:09:27 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:09:27 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:09:27 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:09:27 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-04-24 04:09:27 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:09:27 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:09:27 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:09:27 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:09:27 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:09:27 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:09:27 INFO imstat:::: Statistics --- 2026-04-24 04:09:27 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:09:27 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:09:27 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:09:27 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:09:27 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-04-24 04:09:27 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-04-24 04:09:27 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-04-24 04:09:27 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-04-24 04:09:27 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-04-24 04:09:27 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:09:27 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:09:27 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:09:27 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:09:27 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:09:27 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:09:27 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 2026-04-24 04:09:27 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:09:27.280925 End time: 2026-04-24 04:09:27.306833 2026-04-24 04:09:27 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:09:27 INFO imstat::::casa ########################################## 2026-04-24 04:09:27 INFO phaseshift::::casa ########################################## 2026-04-24 04:09:27 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:09:27 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 19h53m50 40.100000000deg' ) 2026-04-24 04:09:27 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:09:27 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:09:27 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:09:27 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:09:27 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:09:27 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:09:27 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:09:27 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:09:27 INFO MSTransformManager::open Select data 2026-04-24 04:09:27 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:09:30 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:09:30 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 40.100000000deg' successfully parsed 2026-04-24 04:09:30 INFO phaseshift::::casa Shift phase center 2026-04-24 04:09:31 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:09:31 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:09:27.324392 End time: 2026-04-24 04:09:30.895173 2026-04-24 04:09:31 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:09:31 INFO phaseshift::::casa ########################################## 2026-04-24 04:09:31 INFO tclean::::casa ########################################## 2026-04-24 04:09:31 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:09:31 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 ) 2026-04-24 04:09:31 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:09:31 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:09:31 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:09:31 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:09:31 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:09:31 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:09:31 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:09:31 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:09:31 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:09:31 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:09:31 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:09:31 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:09:32 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:09:32 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028249 2026-04-24 04:09:32 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:09:32 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:09:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:09:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:09:34 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:09:34 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:09:34 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:09:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:09:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:09:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:09:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:09:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:09:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:09:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:09:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:09:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:09:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:09:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:09:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:09:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:09:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:09:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:09:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:09:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:09:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:09:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:09:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:09:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:09:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:09:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:09:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:09:39 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:09:39 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:09:39 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:09:40 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:09:40 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:09:41 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:09:30.955935 End time: 2026-04-24 04:09:41.398989 2026-04-24 04:09:41 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:09:41 INFO tclean::::casa ########################################## 2026-04-24 04:09:41 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:09:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:09:41 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) 2026-04-24 04:09:41 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:09:41 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:09:41 2026****** 2026-04-24 04:09:41 INFO ImageFitter::fit+ 2026-04-24 04:09:41 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:09:41 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:09:41 INFO ImageFitter::fit+ --- region: 2026-04-24 04:09:41 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:09:41 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:09:41 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:09:41 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:09:41 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:09:41 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:09:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:09:41 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) 2026-04-24 04:09:41 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:09:41 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:09:41 INFO imstat::::casa ########################################## 2026-04-24 04:09:41 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:09:41 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 ) 2026-04-24 04:09:41 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:09:41 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:09:41 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:09:41 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:09:41 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:09:41 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) 2026-04-24 04:09:41 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:09:41 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:09:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:09:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:09:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:09:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:09:41 INFO imstat:::: Values --- 2026-04-24 04:09:41 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:09:41 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:09:41 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:09:41 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-04-24 04:09:41 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:09:41 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:09:41 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:09:41 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:09:41 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:09:41 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:09:41 INFO imstat:::: Statistics --- 2026-04-24 04:09:41 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:09:41 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:09:41 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:09:41 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:09:41 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-04-24 04:09:41 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-04-24 04:09:41 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-04-24 04:09:41 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-04-24 04:09:41 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-04-24 04:09:41 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:09:41 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:09:41 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:09:41 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:09:41 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:09:41 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:09:41 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 2026-04-24 04:09:41 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:09:41.467926 End time: 2026-04-24 04:09:41.493261 2026-04-24 04:09:41 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:09:41 INFO imstat::::casa ########################################## 2026-04-24 04:09:42 INFO phaseshift::::casa ########################################## 2026-04-24 04:09:42 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:09:42 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19h53m50 0.699877030rad' ) 2026-04-24 04:09:42 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:09:42 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:09:42 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:09:42 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:09:42 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:09:42 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:09:42 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:09:42 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:09:42 INFO MSTransformManager::open Select data 2026-04-24 04:09:42 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:09:46 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:09:46 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19h53m50 0.699877030rad' successfully parsed 2026-04-24 04:09:46 INFO phaseshift::::casa Shift phase center 2026-04-24 04:09:48 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:09:48 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:09:41.517090 End time: 2026-04-24 04:09:48.235924 2026-04-24 04:09:48 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:09:48 INFO phaseshift::::casa ########################################## 2026-04-24 04:09:48 INFO tclean::::casa ########################################## 2026-04-24 04:09:48 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:09:48 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, 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 ) 2026-04-24 04:09:48 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:09:48 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:09:48 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:09:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:09:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:09:48 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:09:48 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:09:48 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:09:48 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:09:48 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:09:48 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:09:48 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:09:51 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:09:51 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026576 2026-04-24 04:09:51 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:09:51 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:09:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:09:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:09:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:09:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:09:52 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:09:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:09:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:09:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:09:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:09:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:09:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:09:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:09:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:09:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:09:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:09:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:09:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:09:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:09:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:09:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:09:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:09:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:09:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:09:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:09:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:09:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:09:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:09:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:09:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:09:58 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:09:58 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:09:58 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:09:59 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:09:59 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:10:01 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:09:48.291772 End time: 2026-04-24 04:10:00.835749 2026-04-24 04:10:01 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:10:01 INFO tclean::::casa ########################################## 2026-04-24 04:10:01 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:10:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:10:01 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) 2026-04-24 04:10:01 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:10:01 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:10:01 2026****** 2026-04-24 04:10:01 INFO ImageFitter::fit+ 2026-04-24 04:10:01 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:10:01 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:10:01 INFO ImageFitter::fit+ --- region: 2026-04-24 04:10:01 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:10:01 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:10:01 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:10:01 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:10:01 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:10:01 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:10:01 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:10:01 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) 2026-04-24 04:10:01 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:10:01 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:10:01 INFO imstat::::casa ########################################## 2026-04-24 04:10:01 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:10:01 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 ) 2026-04-24 04:10:01 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:10:01 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:10:01 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:10:01 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:10:01 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:10:01 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) 2026-04-24 04:10:01 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:10:01 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:10:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:10:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:10:01 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:10:01 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:10:01 INFO imstat:::: Values --- 2026-04-24 04:10:01 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:10:01 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:10:01 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:10:01 INFO imstat:::: -- minimum value [min]: -7.77764e-05 Jy/beam 2026-04-24 04:10:01 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:10:01 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-24 04:10:01 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:10:01 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-04-24 04:10:01 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:10:01 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:10:01 INFO imstat:::: Statistics --- 2026-04-24 04:10:01 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:10:01 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:10:01 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:10:01 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:10:01 INFO imstat:::: -- Median of the pixel values [median]: -1.86664e-05 Jy/beam 2026-04-24 04:10:01 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-04-24 04:10:01 INFO imstat:::: -- IQR [quartile]: 3.56255e-05 Jy/beam 2026-04-24 04:10:01 INFO imstat:::: -- First quartile [q1]: -3.45078e-05 Jy/beam 2026-04-24 04:10:01 INFO imstat:::: -- Third quartile [q3]: 1.11764e-06 Jy/beam 2026-04-24 04:10:01 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:10:01 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:10:01 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:10:01 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:10:01 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:10:01 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:10:01 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 2026-04-24 04:10:01 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:10:00.909002 End time: 2026-04-24 04:10:00.944405 2026-04-24 04:10:01 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:10:01 INFO imstat::::casa ########################################## 2026-04-24 04:10:01 INFO phaseshift::::casa ########################################## 2026-04-24 04:10:01 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:10:01 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 40d06m00' ) 2026-04-24 04:10:01 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:10:01 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:10:01 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:10:01 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:10:01 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:10:01 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:10:01 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:10:01 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:10:01 INFO MSTransformManager::open Select data 2026-04-24 04:10:01 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:10:05 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:10:05 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 40d06m00' successfully parsed 2026-04-24 04:10:05 INFO phaseshift::::casa Shift phase center 2026-04-24 04:10:07 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:10:07 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:10:00.962788 End time: 2026-04-24 04:10:07.343396 2026-04-24 04:10:07 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:10:07 INFO phaseshift::::casa ########################################## 2026-04-24 04:10:07 INFO tclean::::casa ########################################## 2026-04-24 04:10:07 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:10:07 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, 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 ) 2026-04-24 04:10:07 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:10:07 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:10:07 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:10:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:10:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:10:08 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:10:08 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:10:08 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:10:08 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:10:08 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:10:08 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:10:08 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:10:09 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:10:09 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.018286 2026-04-24 04:10:09 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:10:09 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:10:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:10:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:10:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:10:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:10:11 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:10:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:10:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:10:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:10:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:10:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:10:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:10:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:10:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:10:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:10:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:10:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:10:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:10:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:10:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:10:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:10:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:10:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:10:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:10:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:10:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:10:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:10:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:10:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:10:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:10:19 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:10:19 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:10:19 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:10:21 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:10:21 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:10:24 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:10:07.400383 End time: 2026-04-24 04:10:23.901614 2026-04-24 04:10:24 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:10:24 INFO tclean::::casa ########################################## 2026-04-24 04:10:24 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:10:24 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:10:24 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-24 04:10:24 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:10:24 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:10:24 2026****** 2026-04-24 04:10:24 INFO ImageFitter::fit+ 2026-04-24 04:10:24 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:10:24 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:10:24 INFO ImageFitter::fit+ --- region: 2026-04-24 04:10:24 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:10:24 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:10:24 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:10:24 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:10:24 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:10:24 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:10:24 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:10:24 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-24 04:10:24 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:10:24 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:10:24 INFO imstat::::casa ########################################## 2026-04-24 04:10:24 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:10:24 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-24 04:10:24 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:10:24 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:10:24 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:10:24 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:10:24 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:10:24 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-24 04:10:24 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:10:24 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:10:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:10:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:10:24 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:10:24 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:10:24 INFO imstat:::: Values --- 2026-04-24 04:10:24 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:10:24 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:10:24 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:10:24 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-04-24 04:10:24 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:10:24 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:10:24 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:10:24 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:10:24 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:10:24 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:10:24 INFO imstat:::: Statistics --- 2026-04-24 04:10:24 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:10:24 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:10:24 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:10:24 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:10:24 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-04-24 04:10:24 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-04-24 04:10:24 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-04-24 04:10:24 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-04-24 04:10:24 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-04-24 04:10:24 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:10:24 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:10:24 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:10:24 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:10:24 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:10:24 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:10:24 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 2026-04-24 04:10:24 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:10:23.982072 End time: 2026-04-24 04:10:24.015794 2026-04-24 04:10:24 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:10:24 INFO imstat::::casa ########################################## 2026-04-24 04:10:24 INFO phaseshift::::casa ########################################## 2026-04-24 04:10:24 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:10:24 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 02:40:24.0000' ) 2026-04-24 04:10:24 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:10:24 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:10:24 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:10:24 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:10:24 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:10:24 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:10:24 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:10:24 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:10:24 INFO MSTransformManager::open Select data 2026-04-24 04:10:24 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:10:28 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 ".". 2026-04-24 04:10:28 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 02:40:24.0000' successfully parsed 2026-04-24 04:10:28 INFO phaseshift::::casa Shift phase center 2026-04-24 04:10:29 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:10:30 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:10:24.033022 End time: 2026-04-24 04:10:29.545037 2026-04-24 04:10:30 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:10:30 INFO phaseshift::::casa ########################################## 2026-04-24 04:10:30 INFO tclean::::casa ########################################## 2026-04-24 04:10:30 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:10:30 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 ) 2026-04-24 04:10:30 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:10:30 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:10:30 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:10:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:10:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:10:30 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:10:30 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:10:30 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:10:30 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:10:30 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:10:30 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:10:30 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:10:32 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:10:32 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026864 2026-04-24 04:10:32 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:10:32 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:10:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:10:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:10:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:10:35 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:10:36 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:10:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:10:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:10:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:10:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:10:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:10:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:10:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:10:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:10:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:10:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:10:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:10:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:10:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:10:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:10:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:10:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:10:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:10:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:10:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:10:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:10:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:10:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:10:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:10:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:10:45 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:10:45 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:10:45 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:10:46 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:10:49 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:10:51 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:10:29.605376 End time: 2026-04-24 04:10:50.839286 2026-04-24 04:10:51 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:10:51 INFO tclean::::casa ########################################## 2026-04-24 04:10:51 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:10:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:10:51 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) 2026-04-24 04:10:51 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:10:51 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:10:51 2026****** 2026-04-24 04:10:51 INFO ImageFitter::fit+ 2026-04-24 04:10:51 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:10:51 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:10:51 INFO ImageFitter::fit+ --- region: 2026-04-24 04:10:51 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:10:51 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:10:51 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:10:51 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:10:51 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:10:51 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:10:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:10:51 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) 2026-04-24 04:10:51 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:10:51 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:10:51 INFO imstat::::casa ########################################## 2026-04-24 04:10:51 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:10:51 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 ) 2026-04-24 04:10:51 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:10:51 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:10:51 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:10:51 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:10:51 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:10:51 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) 2026-04-24 04:10:51 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:10:51 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:10:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:10:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:10:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:10:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:10:51 INFO imstat:::: Values --- 2026-04-24 04:10:51 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:10:51 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:10:51 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:10:51 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-04-24 04:10:51 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:10:51 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:10:51 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:10:51 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:10:51 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:10:51 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:10:51 INFO imstat:::: Statistics --- 2026-04-24 04:10:51 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:10:51 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:10:51 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:10:51 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:10:51 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-04-24 04:10:51 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-04-24 04:10:51 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-04-24 04:10:51 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-04-24 04:10:51 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-04-24 04:10:51 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:10:51 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:10:51 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:10:51 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:10:51 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:10:51 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:10:51 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 2026-04-24 04:10:51 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:10:50.917803 End time: 2026-04-24 04:10:50.945487 2026-04-24 04:10:51 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:10:51 INFO imstat::::casa ########################################## 2026-04-24 04:10:51 INFO phaseshift::::casa ########################################## 2026-04-24 04:10:51 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:10:51 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 40.100000000deg' ) 2026-04-24 04:10:51 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:10:51 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:10:51 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:10:51 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:10:51 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:10:51 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:10:51 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:10:51 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:10:51 INFO MSTransformManager::open Select data 2026-04-24 04:10:51 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:10:57 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:10:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 40.100000000deg' successfully parsed 2026-04-24 04:10:57 INFO phaseshift::::casa Shift phase center 2026-04-24 04:10:58 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:10:59 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:10:50.963278 End time: 2026-04-24 04:10:58.645545 2026-04-24 04:10:59 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:10:59 INFO phaseshift::::casa ########################################## 2026-04-24 04:10:59 INFO tclean::::casa ########################################## 2026-04-24 04:10:59 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:10:59 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 ) 2026-04-24 04:10:59 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:10:59 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:10:59 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:10:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:10:59 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:10:59 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:10:59 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:10:59 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:10:59 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:10:59 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:10:59 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:10:59 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:11:01 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:11:01 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027278 2026-04-24 04:11:01 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:11:01 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:11:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:11:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:11:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:11:04 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:11:04 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:11:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:11:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:11:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:11:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:11:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:11:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:11:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:11:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:11:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:11:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:11:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:11:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:11:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:11:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:11:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:11:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:11:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:11:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:11:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:11:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:11:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:11:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:11:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:11:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:11:16 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:11:16 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:11:16 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:11:17 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:11:18 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:11:20 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:10:58.709238 End time: 2026-04-24 04:11:20.317861 2026-04-24 04:11:20 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:11:20 INFO tclean::::casa ########################################## 2026-04-24 04:11:20 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:11:20 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:11:20 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) 2026-04-24 04:11:20 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:11:20 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:11:20 2026****** 2026-04-24 04:11:20 INFO ImageFitter::fit+ 2026-04-24 04:11:20 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:11:20 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:11:20 INFO ImageFitter::fit+ --- region: 2026-04-24 04:11:20 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:11:20 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:11:20 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:11:20 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:11:20 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:11:20 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:11:20 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:11:20 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) 2026-04-24 04:11:20 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126491 Jy 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:11:20 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:11:20 INFO imstat::::casa ########################################## 2026-04-24 04:11:20 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:11:20 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 ) 2026-04-24 04:11:20 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:11:20 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:11:20 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:11:20 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:11:20 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:11:20 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) 2026-04-24 04:11:20 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:11:20 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:11:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:11:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:11:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:11:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:11:20 INFO imstat:::: Values --- 2026-04-24 04:11:20 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:11:20 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:11:20 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:11:20 INFO imstat:::: -- minimum value [min]: -7.77766e-05 Jy/beam 2026-04-24 04:11:20 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:11:20 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:11:20 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:11:20 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:11:20 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:11:20 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:11:20 INFO imstat:::: Statistics --- 2026-04-24 04:11:20 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:11:20 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:11:20 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:11:20 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:11:20 INFO imstat:::: -- Median of the pixel values [median]: -1.86645e-05 Jy/beam 2026-04-24 04:11:20 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73581e-05 Jy/beam 2026-04-24 04:11:20 INFO imstat:::: -- IQR [quartile]: 3.56193e-05 Jy/beam 2026-04-24 04:11:20 INFO imstat:::: -- First quartile [q1]: -3.45066e-05 Jy/beam 2026-04-24 04:11:20 INFO imstat:::: -- Third quartile [q3]: 1.11276e-06 Jy/beam 2026-04-24 04:11:20 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:11:20 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:11:20 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:11:20 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:11:20 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:11:20 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:11:20 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 2026-04-24 04:11:20 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:11:20.389421 End time: 2026-04-24 04:11:20.415374 2026-04-24 04:11:20 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:11:20 INFO imstat::::casa ########################################## 2026-04-24 04:11:20 INFO phaseshift::::casa ########################################## 2026-04-24 04:11:20 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:11:20 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 19:53:50.0000 0.699877030rad' ) 2026-04-24 04:11:20 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:11:20 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:11:20 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:11:20 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:11:20 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:11:20 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:11:20 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:11:20 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:11:20 INFO MSTransformManager::open Select data 2026-04-24 04:11:20 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:11:28 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:11:28 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 19:53:50.0000 0.699877030rad' successfully parsed 2026-04-24 04:11:28 INFO phaseshift::::casa Shift phase center 2026-04-24 04:11:30 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:11:30 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:11:20.432387 End time: 2026-04-24 04:11:29.812409 2026-04-24 04:11:30 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:11:30 INFO phaseshift::::casa ########################################## 2026-04-24 04:11:30 INFO tclean::::casa ########################################## 2026-04-24 04:11:30 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:11:30 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 ) 2026-04-24 04:11:30 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:11:30 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:11:30 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:11:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:11:30 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:11:30 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:11:30 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:11:30 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:11:30 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:11:30 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:11:30 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:11:30 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:11:32 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:11:32 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02894 2026-04-24 04:11:32 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:11:32 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:11:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:11:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:11:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:11:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:11:36 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:11:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:11:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:11:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:11:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:11:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:11:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:11:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:11:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:11:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:11:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:11:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:11:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:11:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:11:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:11:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:11:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:11:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:11:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:11:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:11:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:11:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:11:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:11:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:11:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:11:43 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:11:43 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:11:43 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:11:44 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:11:44 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:11:46 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:11:29.872813 End time: 2026-04-24 04:11:45.523558 2026-04-24 04:11:46 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:11:46 INFO tclean::::casa ########################################## 2026-04-24 04:11:46 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:11:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:11:46 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) 2026-04-24 04:11:46 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:11:46 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:11:46 2026****** 2026-04-24 04:11:46 INFO ImageFitter::fit+ 2026-04-24 04:11:46 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:11:46 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:11:46 INFO ImageFitter::fit+ --- region: 2026-04-24 04:11:46 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:11:46 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:11:46 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:11:46 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:11:46 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:11:46 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:11:46 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:11:46 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) 2026-04-24 04:11:46 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:11:46 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:11:46 INFO imstat::::casa ########################################## 2026-04-24 04:11:46 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:11:46 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 ) 2026-04-24 04:11:46 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:11:46 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:11:46 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:11:46 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:11:46 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:11:46 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) 2026-04-24 04:11:46 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:11:46 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:11:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:11:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:11:46 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:11:46 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:11:46 INFO imstat:::: Values --- 2026-04-24 04:11:46 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:11:46 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:11:46 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:11:46 INFO imstat:::: -- minimum value [min]: -7.77764e-05 Jy/beam 2026-04-24 04:11:46 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:11:46 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-24 04:11:46 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:11:46 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-04-24 04:11:46 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:11:46 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:11:46 INFO imstat:::: Statistics --- 2026-04-24 04:11:46 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:11:46 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:11:46 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:11:46 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:11:46 INFO imstat:::: -- Median of the pixel values [median]: -1.86664e-05 Jy/beam 2026-04-24 04:11:46 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-04-24 04:11:46 INFO imstat:::: -- IQR [quartile]: 3.56255e-05 Jy/beam 2026-04-24 04:11:46 INFO imstat:::: -- First quartile [q1]: -3.45078e-05 Jy/beam 2026-04-24 04:11:46 INFO imstat:::: -- Third quartile [q3]: 1.11764e-06 Jy/beam 2026-04-24 04:11:46 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:11:46 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:11:46 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:11:46 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:11:46 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:11:46 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:11:46 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 2026-04-24 04:11:46 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:11:45.597161 End time: 2026-04-24 04:11:45.623717 2026-04-24 04:11:46 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:11:46 INFO imstat::::casa ########################################## 2026-04-24 04:11:46 INFO phaseshift::::casa ########################################## 2026-04-24 04:11:46 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:11:46 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 40d06m00' ) 2026-04-24 04:11:46 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:11:46 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:11:46 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:11:46 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:11:46 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:11:46 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:11:46 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:11:46 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:11:46 INFO MSTransformManager::open Select data 2026-04-24 04:11:46 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:11:49 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:11:49 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 40d06m00' successfully parsed 2026-04-24 04:11:49 INFO phaseshift::::casa Shift phase center 2026-04-24 04:11:50 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:11:50 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:11:45.640941 End time: 2026-04-24 04:11:50.353965 2026-04-24 04:11:50 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:11:50 INFO phaseshift::::casa ########################################## 2026-04-24 04:11:50 INFO tclean::::casa ########################################## 2026-04-24 04:11:50 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:11:50 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 ) 2026-04-24 04:11:50 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:11:50 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:11:50 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:11:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:11:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:11:51 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:11:51 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:11:51 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:11:51 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:11:51 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:11:51 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:11:51 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:11:51 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:11:51 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.017867 2026-04-24 04:11:51 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:11:51 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:11:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:11:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:11:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:11:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:11:53 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:11:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:11:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:11:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:11:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:11:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:11:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:11:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:11:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:11:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:11:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:11:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:11:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:11:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:11:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:11:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:11:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:11:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:11:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:11:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:11:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:11:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:11:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:11:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:11:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:11:58 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:11:58 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:11:58 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:11:59 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:12:00 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:12:02 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:11:50.395364 End time: 2026-04-24 04:12:01.555124 2026-04-24 04:12:02 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:12:02 INFO tclean::::casa ########################################## 2026-04-24 04:12:02 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:12:02 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:12:02 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) 2026-04-24 04:12:02 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:12:02 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:12:02 2026****** 2026-04-24 04:12:02 INFO ImageFitter::fit+ 2026-04-24 04:12:02 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:12:02 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:12:02 INFO ImageFitter::fit+ --- region: 2026-04-24 04:12:02 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:12:02 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:12:02 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:12:02 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:12:02 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:12:02 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:12:02 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:12:02 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) 2026-04-24 04:12:02 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:12:02 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:12:02 INFO imstat::::casa ########################################## 2026-04-24 04:12:02 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:12:02 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 ) 2026-04-24 04:12:02 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:12:02 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:12:02 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:12:02 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:12:02 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:12:02 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) 2026-04-24 04:12:02 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:12:02 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:12:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:12:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:12:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:12:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:12:02 INFO imstat:::: Values --- 2026-04-24 04:12:02 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:12:02 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:12:02 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:12:02 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-04-24 04:12:02 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:12:02 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:12:02 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:12:02 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:12:02 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:12:02 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:12:02 INFO imstat:::: Statistics --- 2026-04-24 04:12:02 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:12:02 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:12:02 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:12:02 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:12:02 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-04-24 04:12:02 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-04-24 04:12:02 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-04-24 04:12:02 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-04-24 04:12:02 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-04-24 04:12:02 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:12:02 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:12:02 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:12:02 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:12:02 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:12:02 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:12:02 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 2026-04-24 04:12:02 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:12:01.614216 End time: 2026-04-24 04:12:01.632930 2026-04-24 04:12:02 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:12:02 INFO imstat::::casa ########################################## 2026-04-24 04:12:02 INFO phaseshift::::casa ########################################## 2026-04-24 04:12:02 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:12:02 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 02:40:24.0000' ) 2026-04-24 04:12:02 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:12:02 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:12:02 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:12:02 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:12:02 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:12:02 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:12:02 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:12:02 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:12:02 INFO MSTransformManager::open Select data 2026-04-24 04:12:02 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:12:06 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 ".". 2026-04-24 04:12:06 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 02:40:24.0000' successfully parsed 2026-04-24 04:12:06 INFO phaseshift::::casa Shift phase center 2026-04-24 04:12:07 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:12:07 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:12:01.646387 End time: 2026-04-24 04:12:07.485339 2026-04-24 04:12:07 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:12:07 INFO phaseshift::::casa ########################################## 2026-04-24 04:12:08 INFO tclean::::casa ########################################## 2026-04-24 04:12:08 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:12:08 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 ) 2026-04-24 04:12:08 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:12:08 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:12:08 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:12:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:12:08 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:12:08 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:12:08 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:12:08 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:12:08 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:12:08 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:12:08 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:12:08 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:12:09 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:12:09 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021472 2026-04-24 04:12:09 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:12:09 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:12:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:12:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:12:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:12:11 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:12:11 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:12:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:12:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:12:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:12:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:12:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:12:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:12:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:12:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:12:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:12:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:12:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:12:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:12:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:12:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:12:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:12:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:12:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:12:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:12:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:12:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:12:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:12:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:12:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:12:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:12:19 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:12:19 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:12:19 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:12:21 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:12:21 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:12:22 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:12:07.542815 End time: 2026-04-24 04:12:21.737828 2026-04-24 04:12:22 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:12:22 INFO tclean::::casa ########################################## 2026-04-24 04:12:22 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:12:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:12:22 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) 2026-04-24 04:12:22 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:12:22 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:12:22 2026****** 2026-04-24 04:12:22 INFO ImageFitter::fit+ 2026-04-24 04:12:22 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:12:22 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:12:22 INFO ImageFitter::fit+ --- region: 2026-04-24 04:12:22 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:12:22 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:12:22 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:12:22 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:12:22 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:12:22 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:12:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:12:22 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) 2026-04-24 04:12:22 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:12:22 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:12:22 INFO imstat::::casa ########################################## 2026-04-24 04:12:22 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:12:22 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 ) 2026-04-24 04:12:22 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:12:22 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:12:22 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:12:22 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:12:22 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:12:22 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) 2026-04-24 04:12:22 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:12:22 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:12:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:12:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:12:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:12:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:12:22 INFO imstat:::: Values --- 2026-04-24 04:12:22 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:12:22 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:12:22 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:12:22 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-04-24 04:12:22 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:12:22 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:12:22 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:12:22 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:12:22 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:12:22 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:12:22 INFO imstat:::: Statistics --- 2026-04-24 04:12:22 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:12:22 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:12:22 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:12:22 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:12:22 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-04-24 04:12:22 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-04-24 04:12:22 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-04-24 04:12:22 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-04-24 04:12:22 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-04-24 04:12:22 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:12:22 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:12:22 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:12:22 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:12:22 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:12:22 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:12:22 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 2026-04-24 04:12:22 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:12:21.812591 End time: 2026-04-24 04:12:21.839651 2026-04-24 04:12:22 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:12:22 INFO imstat::::casa ########################################## 2026-04-24 04:12:22 INFO phaseshift::::casa ########################################## 2026-04-24 04:12:22 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:12:22 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 298.458333333deg 40.100000000deg' ) 2026-04-24 04:12:22 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:12:22 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:12:22 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:12:22 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:12:22 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:12:22 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:12:22 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:12:22 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:12:22 INFO MSTransformManager::open Select data 2026-04-24 04:12:22 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:12:26 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:12:26 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 40.100000000deg' successfully parsed 2026-04-24 04:12:26 INFO phaseshift::::casa Shift phase center 2026-04-24 04:12:27 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:12:27 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:12:21.856966 End time: 2026-04-24 04:12:26.925825 2026-04-24 04:12:27 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:12:27 INFO phaseshift::::casa ########################################## 2026-04-24 04:12:27 INFO tclean::::casa ########################################## 2026-04-24 04:12:27 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:12:27 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 ) 2026-04-24 04:12:27 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:12:27 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:12:27 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:12:27 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:12:27 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:12:27 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:12:27 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:12:27 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:12:27 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:12:27 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:12:27 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:12:27 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:12:28 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:12:28 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028973 2026-04-24 04:12:28 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:12:28 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:12:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:12:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:12:30 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:12:31 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:12:31 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:12:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:12:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:12:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:12:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:12:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:12:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:12:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:12:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:12:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:12:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:12:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:12:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:12:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:12:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:12:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:12:34 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:12:34 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:12:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:12:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:12:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:12:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:12:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:12:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:12:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:12:35 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:12:35 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:12:35 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:12:36 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:12:36 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:12:38 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:12:26.976898 End time: 2026-04-24 04:12:37.500157 2026-04-24 04:12:38 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:12:38 INFO tclean::::casa ########################################## 2026-04-24 04:12:38 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:12:38 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:12:38 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) 2026-04-24 04:12:38 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:12:38 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:12:38 2026****** 2026-04-24 04:12:38 INFO ImageFitter::fit+ 2026-04-24 04:12:38 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:12:38 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:12:38 INFO ImageFitter::fit+ --- region: 2026-04-24 04:12:38 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:12:38 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:12:38 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:12:38 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:12:38 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:12:38 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:12:38 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:12:38 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) 2026-04-24 04:12:38 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:12:38 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:12:38 INFO imstat::::casa ########################################## 2026-04-24 04:12:38 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:12:38 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 ) 2026-04-24 04:12:38 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:12:38 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:12:38 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:12:38 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:12:38 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:12:38 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) 2026-04-24 04:12:38 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:12:38 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:12:38 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:12:38 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:12:38 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:12:38 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:12:38 INFO imstat:::: Values --- 2026-04-24 04:12:38 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:12:38 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:12:38 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:12:38 INFO imstat:::: -- minimum value [min]: -7.77758e-05 Jy/beam 2026-04-24 04:12:38 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:12:38 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:12:38 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:12:38 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:12:38 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:12:38 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:12:38 INFO imstat:::: Statistics --- 2026-04-24 04:12:38 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:12:38 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:12:38 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:12:38 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:12:38 INFO imstat:::: -- Median of the pixel values [median]: -1.86641e-05 Jy/beam 2026-04-24 04:12:38 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7358e-05 Jy/beam 2026-04-24 04:12:38 INFO imstat:::: -- IQR [quartile]: 3.56208e-05 Jy/beam 2026-04-24 04:12:38 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-04-24 04:12:38 INFO imstat:::: -- Third quartile [q3]: 1.11336e-06 Jy/beam 2026-04-24 04:12:38 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:12:38 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:12:38 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:12:38 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:12:38 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:12:38 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:12:38 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 2026-04-24 04:12:38 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:12:37.554299 End time: 2026-04-24 04:12:37.576429 2026-04-24 04:12:38 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:12:38 INFO imstat::::casa ########################################## 2026-04-24 04:12:38 INFO phaseshift::::casa ########################################## 2026-04-24 04:12:38 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:12:38 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 298.458333333deg 0.699877030rad' ) 2026-04-24 04:12:38 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:12:38 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:12:38 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:12:38 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:12:38 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:12:38 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:12:38 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:12:38 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:12:38 INFO MSTransformManager::open Select data 2026-04-24 04:12:38 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:12:40 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:12:40 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 298.458333333deg 0.699877030rad' successfully parsed 2026-04-24 04:12:40 INFO phaseshift::::casa Shift phase center 2026-04-24 04:12:41 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:12:41 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:12:37.591343 End time: 2026-04-24 04:12:40.818735 2026-04-24 04:12:41 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:12:41 INFO phaseshift::::casa ########################################## 2026-04-24 04:12:41 INFO tclean::::casa ########################################## 2026-04-24 04:12:41 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:12:41 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, 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 ) 2026-04-24 04:12:41 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:12:41 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:12:41 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:12:41 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:12:41 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:12:41 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:12:41 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:12:41 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:12:41 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:12:41 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:12:41 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:12:41 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:12:42 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:12:42 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026518 2026-04-24 04:12:42 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:12:42 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:12:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:12:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:12:44 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:12:44 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:12:44 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:12:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:12:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:12:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:12:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:12:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:12:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:12:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:12:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:12:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:12:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:12:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:12:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:12:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:12:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:12:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:12:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:12:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:12:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:12:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:12:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:12:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:12:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:12:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:12:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:12:51 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:12:51 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:12:51 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:12:52 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:12:53 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:12:54 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:12:40.872148 End time: 2026-04-24 04:12:54.373484 2026-04-24 04:12:54 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:12:54 INFO tclean::::casa ########################################## 2026-04-24 04:12:54 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:12:54 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:12:54 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-24 04:12:54 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:12:54 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:12:54 2026****** 2026-04-24 04:12:54 INFO ImageFitter::fit+ 2026-04-24 04:12:54 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:12:54 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:12:54 INFO ImageFitter::fit+ --- region: 2026-04-24 04:12:54 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:12:54 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:12:54 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:12:54 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:12:54 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:12:54 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:12:54 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:12:54 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) 2026-04-24 04:12:54 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126487 Jy 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ --- ra: 128.000000 +/- 0.000127 pixels 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:12:54 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:12:54 INFO imstat::::casa ########################################## 2026-04-24 04:12:54 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:12:54 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 ) 2026-04-24 04:12:54 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:12:54 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:12:54 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:12:54 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:12:54 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:12:54 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) 2026-04-24 04:12:54 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:12:54 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:12:54 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:12:54 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:12:54 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:12:54 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:12:54 INFO imstat:::: Values --- 2026-04-24 04:12:54 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:12:54 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:12:54 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:12:54 INFO imstat:::: -- minimum value [min]: -7.77738e-05 Jy/beam 2026-04-24 04:12:54 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:12:54 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:12:54 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:12:54 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:12:54 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:12:54 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:12:54 INFO imstat:::: Statistics --- 2026-04-24 04:12:54 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:12:54 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:12:54 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:12:54 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:12:54 INFO imstat:::: -- Median of the pixel values [median]: -1.86662e-05 Jy/beam 2026-04-24 04:12:54 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73577e-05 Jy/beam 2026-04-24 04:12:54 INFO imstat:::: -- IQR [quartile]: 3.56242e-05 Jy/beam 2026-04-24 04:12:54 INFO imstat:::: -- First quartile [q1]: -3.45075e-05 Jy/beam 2026-04-24 04:12:54 INFO imstat:::: -- Third quartile [q3]: 1.11673e-06 Jy/beam 2026-04-24 04:12:54 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:12:54 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:12:54 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:12:54 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:12:54 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:12:54 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:12:54 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 2026-04-24 04:12:54 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:12:54.462505 End time: 2026-04-24 04:12:54.491670 2026-04-24 04:12:54 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:12:54 INFO imstat::::casa ########################################## 2026-04-24 04:12:55 INFO phaseshift::::casa ########################################## 2026-04-24 04:12:55 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:12:55 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 40d06m00' ) 2026-04-24 04:12:55 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:12:55 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:12:55 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:12:55 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:12:55 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:12:55 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:12:55 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:12:55 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:12:55 INFO MSTransformManager::open Select data 2026-04-24 04:12:55 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:12:57 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:12:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 40d06m00' successfully parsed 2026-04-24 04:12:57 INFO phaseshift::::casa Shift phase center 2026-04-24 04:12:58 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:12:58 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:12:54.510460 End time: 2026-04-24 04:12:57.657893 2026-04-24 04:12:58 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:12:58 INFO phaseshift::::casa ########################################## 2026-04-24 04:12:58 INFO tclean::::casa ########################################## 2026-04-24 04:12:58 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:12:58 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, 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 ) 2026-04-24 04:12:58 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:12:58 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:12:58 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:12:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:12:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:12:58 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:12:58 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:12:58 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:12:58 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:12:58 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:12:58 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:12:58 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:12:59 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:12:59 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029297 2026-04-24 04:12:59 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:12:59 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:13:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:13:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:13:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:13:01 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:13:01 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:13:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:13:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:13:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:13:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:13:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:13:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:13:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:13:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:13:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:13:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:13:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:13:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:13:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:13:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:13:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:13:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:13:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:13:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:13:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:13:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:13:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:13:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:13:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:13:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:13:09 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:13:09 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:13:09 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:13:10 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:13:10 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:13:12 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:12:57.714344 End time: 2026-04-24 04:13:11.682095 2026-04-24 04:13:12 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:13:12 INFO tclean::::casa ########################################## 2026-04-24 04:13:12 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:13:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:13:12 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) 2026-04-24 04:13:12 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:13:12 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:13:12 2026****** 2026-04-24 04:13:12 INFO ImageFitter::fit+ 2026-04-24 04:13:12 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:13:12 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:13:12 INFO ImageFitter::fit+ --- region: 2026-04-24 04:13:12 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:13:12 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:13:12 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:13:12 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:13:12 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:13:12 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:13:12 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:13:12 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) 2026-04-24 04:13:12 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:13:12 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:13:12 INFO imstat::::casa ########################################## 2026-04-24 04:13:12 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:13:12 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 ) 2026-04-24 04:13:12 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:13:12 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:13:12 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:13:12 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:13:12 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:13:12 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) 2026-04-24 04:13:12 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:13:12 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:13:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:13:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:13:12 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:13:12 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:13:12 INFO imstat:::: Values --- 2026-04-24 04:13:12 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:13:12 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:13:12 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:13:12 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-04-24 04:13:12 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:13:12 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-24 04:13:12 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:13:12 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-04-24 04:13:12 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:13:12 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:13:12 INFO imstat:::: Statistics --- 2026-04-24 04:13:12 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:13:12 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:13:12 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:13:12 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:13:12 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-04-24 04:13:12 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-04-24 04:13:12 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-04-24 04:13:12 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-04-24 04:13:12 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-04-24 04:13:12 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:13:12 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:13:12 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:13:12 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:13:12 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:13:12 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:13:12 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 2026-04-24 04:13:12 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:13:11.749882 End time: 2026-04-24 04:13:11.775325 2026-04-24 04:13:12 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:13:12 INFO imstat::::casa ########################################## 2026-04-24 04:13:12 INFO phaseshift::::casa ########################################## 2026-04-24 04:13:12 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:13:12 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 02:40:24.0000' ) 2026-04-24 04:13:12 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:13:12 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:13:12 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:13:12 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:13:12 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:13:12 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:13:12 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:13:12 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:13:12 INFO MSTransformManager::open Select data 2026-04-24 04:13:12 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:13:15 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 ".". 2026-04-24 04:13:15 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 02:40:24.0000' successfully parsed 2026-04-24 04:13:15 INFO phaseshift::::casa Shift phase center 2026-04-24 04:13:16 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:13:16 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:13:11.792154 End time: 2026-04-24 04:13:15.850348 2026-04-24 04:13:16 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:13:16 INFO phaseshift::::casa ########################################## 2026-04-24 04:13:16 INFO tclean::::casa ########################################## 2026-04-24 04:13:16 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:13:16 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, 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 ) 2026-04-24 04:13:16 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:13:16 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:13:16 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:13:16 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:13:16 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:13:16 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:13:16 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:13:16 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:13:16 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:13:16 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:13:16 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:13:16 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:13:18 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:13:18 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026539 2026-04-24 04:13:18 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:13:18 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:13:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:13:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:13:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:13:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:13:21 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:13:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:13:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:13:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:13:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:13:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:13:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:13:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:13:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:13:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:13:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:13:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:13:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:13:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:13:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:13:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:13:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:13:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:13:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:13:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:13:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:13:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:13:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:13:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:13:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:13:30 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:13:30 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:13:30 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:13:31 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:13:31 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:13:33 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:13:15.906734 End time: 2026-04-24 04:13:33.213984 2026-04-24 04:13:33 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:13:33 INFO tclean::::casa ########################################## 2026-04-24 04:13:33 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:13:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:13:33 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-24 04:13:33 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:13:33 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:13:33 2026****** 2026-04-24 04:13:33 INFO ImageFitter::fit+ 2026-04-24 04:13:33 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:13:33 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:13:33 INFO ImageFitter::fit+ --- region: 2026-04-24 04:13:33 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:13:33 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:13:33 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:13:33 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:13:33 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:13:33 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:13:33 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:13:33 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-24 04:13:33 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:13:33 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:13:33 INFO imstat::::casa ########################################## 2026-04-24 04:13:33 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:13:33 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 ) 2026-04-24 04:13:33 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:13:33 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:13:33 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:13:33 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:13:33 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:13:33 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-24 04:13:33 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:13:33 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:13:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:13:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:13:33 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:13:33 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:13:33 INFO imstat:::: Values --- 2026-04-24 04:13:33 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:13:33 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:13:33 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:13:33 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-04-24 04:13:33 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:13:33 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-24 04:13:33 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:13:33 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-04-24 04:13:33 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:13:33 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:13:33 INFO imstat:::: Statistics --- 2026-04-24 04:13:33 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:13:33 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:13:33 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:13:33 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:13:33 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-04-24 04:13:33 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-04-24 04:13:33 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-04-24 04:13:33 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-04-24 04:13:33 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-04-24 04:13:33 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:13:33 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:13:33 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:13:33 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:13:33 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:13:33 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:13:33 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 2026-04-24 04:13:33 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:13:33.274409 End time: 2026-04-24 04:13:33.309445 2026-04-24 04:13:33 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:13:33 INFO imstat::::casa ########################################## 2026-04-24 04:13:33 INFO phaseshift::::casa ########################################## 2026-04-24 04:13:33 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:13:33 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='J2000 5.209080597rad 40.100000000deg' ) 2026-04-24 04:13:33 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:13:33 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:13:33 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:13:33 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:13:33 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:13:33 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:13:33 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:13:33 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:13:33 INFO MSTransformManager::open Select data 2026-04-24 04:13:33 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:13:36 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:13:36 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 40.100000000deg' successfully parsed 2026-04-24 04:13:36 INFO phaseshift::::casa Shift phase center 2026-04-24 04:13:37 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:13:37 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:13:33.334474 End time: 2026-04-24 04:13:37.155591 2026-04-24 04:13:37 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:13:37 INFO phaseshift::::casa ########################################## 2026-04-24 04:13:37 INFO tclean::::casa ########################################## 2026-04-24 04:13:37 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:13:37 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 ) 2026-04-24 04:13:37 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:13:37 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:13:37 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:13:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:13:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:13:37 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:13:37 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:13:37 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:13:37 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:13:37 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:13:37 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:13:37 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:13:39 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:13:39 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028827 2026-04-24 04:13:39 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:13:39 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:13:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:13:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:13:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:13:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:13:41 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:13:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:13:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:13:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:13:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:13:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:13:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:13:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:13:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:13:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:13:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:13:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:13:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:13:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:13:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:13:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:13:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:13:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:13:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:13:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:13:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:13:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:13:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:13:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:13:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:13:49 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:13:49 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:13:49 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:13:50 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:13:50 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:13:52 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:13:37.209728 End time: 2026-04-24 04:13:51.630330 2026-04-24 04:13:52 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:13:52 INFO tclean::::casa ########################################## 2026-04-24 04:13:52 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:13:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:13:52 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) 2026-04-24 04:13:52 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:13:52 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:13:52 2026****** 2026-04-24 04:13:52 INFO ImageFitter::fit+ 2026-04-24 04:13:52 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:13:52 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:13:52 INFO ImageFitter::fit+ --- region: 2026-04-24 04:13:52 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:13:52 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:13:52 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:13:52 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:13:52 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:13:52 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:13:52 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:13:52 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) 2026-04-24 04:13:52 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000001 +/- 0.000777 arcsec 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ --- dec: 128.000000 +/- 0.000097 pixels 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:13:52 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:13:52 INFO imstat::::casa ########################################## 2026-04-24 04:13:52 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:13:52 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 ) 2026-04-24 04:13:52 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:13:52 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:13:52 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:13:52 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:13:52 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:13:52 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) 2026-04-24 04:13:52 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:13:52 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:13:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:13:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:13:52 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:13:52 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:13:52 INFO imstat:::: Values --- 2026-04-24 04:13:52 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:13:52 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:13:52 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:13:52 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-04-24 04:13:52 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:13:52 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-24 04:13:52 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:13:52 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-04-24 04:13:52 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:13:52 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:13:52 INFO imstat:::: Statistics --- 2026-04-24 04:13:52 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:13:52 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:13:52 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:13:52 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:13:52 INFO imstat:::: -- Median of the pixel values [median]: -1.86723e-05 Jy/beam 2026-04-24 04:13:52 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73614e-05 Jy/beam 2026-04-24 04:13:52 INFO imstat:::: -- IQR [quartile]: 3.55964e-05 Jy/beam 2026-04-24 04:13:52 INFO imstat:::: -- First quartile [q1]: -3.45025e-05 Jy/beam 2026-04-24 04:13:52 INFO imstat:::: -- Third quartile [q3]: 1.09391e-06 Jy/beam 2026-04-24 04:13:52 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:13:52 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:13:52 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:13:52 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:13:52 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:13:52 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:13:52 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 2026-04-24 04:13:52 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:13:51.709463 End time: 2026-04-24 04:13:51.736909 2026-04-24 04:13:52 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:13:52 INFO imstat::::casa ########################################## 2026-04-24 04:13:52 INFO phaseshift::::casa ########################################## 2026-04-24 04:13:52 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:13:52 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 5.209080597rad 0.699877030rad' ) 2026-04-24 04:13:52 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:13:52 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:13:52 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:13:52 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:13:52 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:13:52 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:13:52 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:13:52 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:13:52 INFO MSTransformManager::open Select data 2026-04-24 04:13:52 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:13:56 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:13:56 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'J2000 5.209080597rad 0.699877030rad' successfully parsed 2026-04-24 04:13:56 INFO phaseshift::::casa Shift phase center 2026-04-24 04:13:57 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:13:57 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:13:51.754519 End time: 2026-04-24 04:13:56.628161 2026-04-24 04:13:57 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:13:57 INFO phaseshift::::casa ########################################## 2026-04-24 04:13:57 INFO tclean::::casa ########################################## 2026-04-24 04:13:57 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:13:57 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 ) 2026-04-24 04:13:57 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:13:57 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:13:57 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:13:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:13:57 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:13:57 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:13:57 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:13:57 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:13:57 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:13:57 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:13:57 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:13:57 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:13:58 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:13:58 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.021689 2026-04-24 04:13:58 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:13:58 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:13:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:13:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:13:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:13:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:13:59 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:13:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:13:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:14:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:14:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:14:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:14:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:14:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:14:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:14:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:14:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:14:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:14:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:14:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:14:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:14:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:14:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:14:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:14:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:14:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:14:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:14:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:14:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:14:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:14:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:14:07 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:14:07 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:14:07 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:14:08 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:14:08 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:14:09 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:13:56.678136 End time: 2026-04-24 04:14:09.424648 2026-04-24 04:14:09 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:14:09 INFO tclean::::casa ########################################## 2026-04-24 04:14:09 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:14:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:14:09 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) 2026-04-24 04:14:09 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:14:09 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:14:09 2026****** 2026-04-24 04:14:09 INFO ImageFitter::fit+ 2026-04-24 04:14:09 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:14:09 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:14:09 INFO ImageFitter::fit+ --- region: 2026-04-24 04:14:09 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:14:09 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:14:09 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:14:09 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:14:09 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:14:09 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:14:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:14:09 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) 2026-04-24 04:14:09 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:14:09 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:14:10 INFO imstat::::casa ########################################## 2026-04-24 04:14:10 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:14:10 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 ) 2026-04-24 04:14:10 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:14:10 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:14:10 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:14:10 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:14:10 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:14:10 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) 2026-04-24 04:14:10 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:14:10 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:14:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:14:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:14:10 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:14:10 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:14:10 INFO imstat:::: Values --- 2026-04-24 04:14:10 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:14:10 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:14:10 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:14:10 INFO imstat:::: -- minimum value [min]: -7.77793e-05 Jy/beam 2026-04-24 04:14:10 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:14:10 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-24 04:14:10 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:14:10 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-04-24 04:14:10 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:14:10 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:14:10 INFO imstat:::: Statistics --- 2026-04-24 04:14:10 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:14:10 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:14:10 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:14:10 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:14:10 INFO imstat:::: -- Median of the pixel values [median]: -1.86714e-05 Jy/beam 2026-04-24 04:14:10 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73592e-05 Jy/beam 2026-04-24 04:14:10 INFO imstat:::: -- IQR [quartile]: 3.55982e-05 Jy/beam 2026-04-24 04:14:10 INFO imstat:::: -- First quartile [q1]: -3.45035e-05 Jy/beam 2026-04-24 04:14:10 INFO imstat:::: -- Third quartile [q3]: 1.09469e-06 Jy/beam 2026-04-24 04:14:10 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:14:10 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:14:10 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:14:10 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:14:10 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:14:10 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:14:10 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 2026-04-24 04:14:10 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:14:09.506959 End time: 2026-04-24 04:14:09.535427 2026-04-24 04:14:10 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:14:10 INFO imstat::::casa ########################################## 2026-04-24 04:14:10 INFO phaseshift::::casa ########################################## 2026-04-24 04:14:10 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:14:10 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 40d06m0.0019' ) 2026-04-24 04:14:10 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:14:10 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:14:10 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:14:10 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:14:10 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:14:10 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:14:10 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:14:10 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:14:10 INFO MSTransformManager::open Select data 2026-04-24 04:14:10 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:14:12 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:14:12 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 40d06m0.0019' successfully parsed 2026-04-24 04:14:12 INFO phaseshift::::casa Shift phase center 2026-04-24 04:14:13 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:14:13 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:14:09.554153 End time: 2026-04-24 04:14:12.900175 2026-04-24 04:14:13 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:14:13 INFO phaseshift::::casa ########################################## 2026-04-24 04:14:13 INFO tclean::::casa ########################################## 2026-04-24 04:14:13 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:14:13 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 ) 2026-04-24 04:14:13 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:14:13 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:14:13 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:14:13 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:14:13 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:14:13 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:14:13 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:14:13 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:14:13 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:14:13 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:14:13 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:14:13 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:14:14 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:14:14 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028625 2026-04-24 04:14:14 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:14:15 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:14:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:14:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:14:16 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:14:17 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:14:17 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:14:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:14:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:14:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:14:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:14:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:14:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:14:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:14:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:14:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:14:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:14:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:14:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:14:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:14:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:14:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:14:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:14:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:14:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:14:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:14:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:14:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:14:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:14:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:14:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:14:22 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:14:22 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:14:22 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:14:23 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:14:24 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:14:25 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:14:12.959969 End time: 2026-04-24 04:14:24.643778 2026-04-24 04:14:25 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:14:25 INFO tclean::::casa ########################################## 2026-04-24 04:14:25 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:14:25 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:14:25 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) 2026-04-24 04:14:25 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:14:25 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:14:25 2026****** 2026-04-24 04:14:25 INFO ImageFitter::fit+ 2026-04-24 04:14:25 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:14:25 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:14:25 INFO ImageFitter::fit+ --- region: 2026-04-24 04:14:25 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:14:25 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:14:25 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:14:25 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:14:25 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:14:25 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:14:25 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:14:25 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) 2026-04-24 04:14:25 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:14:25 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:14:25 INFO imstat::::casa ########################################## 2026-04-24 04:14:25 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:14:25 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 ) 2026-04-24 04:14:25 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:14:25 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:14:25 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:14:25 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:14:25 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:14:25 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) 2026-04-24 04:14:25 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:14:25 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:14:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:14:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:14:25 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:14:25 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:14:25 INFO imstat:::: Values --- 2026-04-24 04:14:25 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:14:25 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:14:25 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:14:25 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-04-24 04:14:25 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:14:25 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:14:25 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:14:25 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-04-24 04:14:25 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:14:25 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:14:25 INFO imstat:::: Statistics --- 2026-04-24 04:14:25 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:14:25 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:14:25 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:14:25 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:14:25 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-04-24 04:14:25 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-04-24 04:14:25 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-04-24 04:14:25 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-04-24 04:14:25 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-04-24 04:14:25 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:14:25 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:14:25 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:14:25 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:14:25 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:14:25 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:14:25 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 2026-04-24 04:14:25 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:14:24.725001 End time: 2026-04-24 04:14:24.765601 2026-04-24 04:14:25 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:14:25 INFO imstat::::casa ########################################## 2026-04-24 04:14:25 INFO phaseshift::::casa ########################################## 2026-04-24 04:14:25 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:14:25 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 02:40:24.0001' ) 2026-04-24 04:14:25 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:14:25 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:14:25 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:14:25 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:14:25 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:14:25 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:14:25 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:14:25 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:14:25 INFO MSTransformManager::open Select data 2026-04-24 04:14:25 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:14:30 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 ".". 2026-04-24 04:14:30 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 02:40:24.0001' successfully parsed 2026-04-24 04:14:30 INFO phaseshift::::casa Shift phase center 2026-04-24 04:14:31 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:14:31 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:14:24.782285 End time: 2026-04-24 04:14:31.460575 2026-04-24 04:14:31 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:14:31 INFO phaseshift::::casa ########################################## 2026-04-24 04:14:32 INFO tclean::::casa ########################################## 2026-04-24 04:14:32 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:14:32 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, 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 ) 2026-04-24 04:14:32 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:14:32 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:14:32 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:14:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:14:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:14:32 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:14:32 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:14:32 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:14:32 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:14:32 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:14:32 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:14:32 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:14:34 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:14:34 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024672 2026-04-24 04:14:34 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:14:34 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:14:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:14:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:14:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:14:37 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:14:37 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:14:37 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:14:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:14:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:14:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:14:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:14:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:14:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:14:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:14:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:14:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:14:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:14:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:14:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:14:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:14:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:14:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:14:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:14:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:14:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:14:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:14:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:14:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:14:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:14:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:14:44 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:14:44 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:14:44 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:14:45 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:14:46 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:14:47 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:14:31.521093 End time: 2026-04-24 04:14:47.183384 2026-04-24 04:14:47 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:14:47 INFO tclean::::casa ########################################## 2026-04-24 04:14:47 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:14:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:14:47 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-24 04:14:47 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:14:47 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:14:47 2026****** 2026-04-24 04:14:47 INFO ImageFitter::fit+ 2026-04-24 04:14:47 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:14:47 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:14:47 INFO ImageFitter::fit+ --- region: 2026-04-24 04:14:47 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:14:47 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:14:47 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:14:47 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:14:47 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:14:47 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:14:47 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:14:47 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.996 to 19:53:46.513, +40.06.39.996) 2026-04-24 04:14:47 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:14:47 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:14:47 INFO imstat::::casa ########################################## 2026-04-24 04:14:47 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:14:47 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 ) 2026-04-24 04:14:47 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:14:47 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:14:47 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:14:47 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:14:47 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:14:47 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) 2026-04-24 04:14:47 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:14:47 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:14:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:14:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:14:47 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:14:47 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:14:47 INFO imstat:::: Values --- 2026-04-24 04:14:47 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:14:47 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:14:47 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:14:47 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-04-24 04:14:47 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:14:47 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-24 04:14:47 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:14:47 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-04-24 04:14:47 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:14:47 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:14:47 INFO imstat:::: Statistics --- 2026-04-24 04:14:47 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:14:47 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:14:47 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:14:47 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:14:47 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-04-24 04:14:47 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-04-24 04:14:47 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-04-24 04:14:47 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-04-24 04:14:47 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-04-24 04:14:47 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:14:47 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:14:47 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:14:47 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:14:47 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:14:47 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:14:47 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.780943e-05 4.999996e+00 2026-04-24 04:14:47 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:14:47.270016 End time: 2026-04-24 04:14:47.300432 2026-04-24 04:14:47 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:14:47 INFO imstat::::casa ########################################## 2026-04-24 04:14:47 INFO phaseshift::::casa ########################################## 2026-04-24 04:14:47 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:14:47 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 40.100000528deg' ) 2026-04-24 04:14:47 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:14:47 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:14:47 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:14:47 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:14:47 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:14:47 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:14:47 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:14:47 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:14:47 INFO MSTransformManager::open Select data 2026-04-24 04:14:47 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:14:50 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:14:50 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 40.100000528deg' successfully parsed 2026-04-24 04:14:50 INFO phaseshift::::casa Shift phase center 2026-04-24 04:14:51 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:14:51 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:14:47.319317 End time: 2026-04-24 04:14:51.288717 2026-04-24 04:14:51 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:14:51 INFO phaseshift::::casa ########################################## 2026-04-24 04:14:51 INFO tclean::::casa ########################################## 2026-04-24 04:14:51 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:14:51 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 ) 2026-04-24 04:14:51 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:14:51 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:14:51 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:14:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:14:51 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:14:52 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:14:52 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:14:52 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:14:52 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:14:52 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:14:52 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:14:52 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:14:53 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:14:53 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024738 2026-04-24 04:14:53 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:14:53 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:14:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:14:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:14:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:14:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:14:55 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:14:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:14:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:14:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:14:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:14:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:14:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:14:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:14:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:14:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:14:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:14:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:14:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:14:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:14:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:15:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:15:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:15:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:15:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:15:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:15:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:15:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:15:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:15:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:15:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:15:02 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:15:02 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:15:02 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:15:03 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:15:03 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:15:05 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:14:51.349555 End time: 2026-04-24 04:15:05.329788 2026-04-24 04:15:05 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:15:05 INFO tclean::::casa ########################################## 2026-04-24 04:15:05 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:15:05 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:15:05 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) 2026-04-24 04:15:05 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:15:05 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:15:05 2026****** 2026-04-24 04:15:05 INFO ImageFitter::fit+ 2026-04-24 04:15:05 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:15:05 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:15:05 INFO ImageFitter::fit+ --- region: 2026-04-24 04:15:05 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:15:05 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:15:05 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:15:05 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:15:05 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:15:05 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:15:05 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:15:05 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) 2026-04-24 04:15:05 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:15:05 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:15:05 INFO imstat::::casa ########################################## 2026-04-24 04:15:05 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:15:05 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 ) 2026-04-24 04:15:05 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:15:05 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:15:05 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:15:05 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:15:05 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:15:05 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) 2026-04-24 04:15:05 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:15:05 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:15:05 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:15:05 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:15:05 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:15:05 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:15:05 INFO imstat:::: Values --- 2026-04-24 04:15:05 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:15:05 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:15:05 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:15:05 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-04-24 04:15:05 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:15:05 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:15:05 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:15:05 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-04-24 04:15:05 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:15:05 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:15:05 INFO imstat:::: Statistics --- 2026-04-24 04:15:05 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:15:05 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:15:05 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:15:05 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:15:05 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-04-24 04:15:05 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-04-24 04:15:05 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-04-24 04:15:05 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-04-24 04:15:05 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-04-24 04:15:05 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:15:05 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:15:05 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:15:05 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:15:05 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:15:05 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:15:05 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 2026-04-24 04:15:05 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:15:05.397776 End time: 2026-04-24 04:15:05.424349 2026-04-24 04:15:05 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:15:05 INFO imstat::::casa ########################################## 2026-04-24 04:15:05 INFO phaseshift::::casa ########################################## 2026-04-24 04:15:05 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:15:05 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19h53m49.9980 0.699877039rad' ) 2026-04-24 04:15:05 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:15:05 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:15:05 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:15:05 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:15:05 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:15:05 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:15:05 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:15:05 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:15:05 INFO MSTransformManager::open Select data 2026-04-24 04:15:05 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:15:08 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:15:08 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19h53m49.9980 0.699877039rad' successfully parsed 2026-04-24 04:15:08 INFO phaseshift::::casa Shift phase center 2026-04-24 04:15:09 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:15:09 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:15:05.440028 End time: 2026-04-24 04:15:09.378676 2026-04-24 04:15:09 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:15:09 INFO phaseshift::::casa ########################################## 2026-04-24 04:15:09 INFO tclean::::casa ########################################## 2026-04-24 04:15:09 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:15:09 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 ) 2026-04-24 04:15:09 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:15:09 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:15:09 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:15:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:15:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:15:10 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:15:10 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:15:10 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:15:10 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:15:10 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:15:10 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:15:10 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:15:11 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:15:11 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028107 2026-04-24 04:15:11 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:15:11 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:15:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:15:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:15:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:15:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:15:13 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:15:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:15:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:15:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:15:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:15:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:15:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:15:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:15:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:15:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:15:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:15:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:15:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:15:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:15:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:15:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:15:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:15:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:15:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:15:18 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:15:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:15:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:15:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:15:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:15:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:15:19 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:15:19 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:15:19 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:15:20 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:15:20 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:15:21 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:15:09.439436 End time: 2026-04-24 04:15:21.339973 2026-04-24 04:15:21 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:15:21 INFO tclean::::casa ########################################## 2026-04-24 04:15:21 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:15:21 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:15:21 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) 2026-04-24 04:15:21 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:15:21 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:15:21 2026****** 2026-04-24 04:15:21 INFO ImageFitter::fit+ 2026-04-24 04:15:21 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:15:21 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:15:21 INFO ImageFitter::fit+ --- region: 2026-04-24 04:15:21 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:15:21 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:15:21 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:15:21 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:15:21 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:15:21 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:15:21 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:15:21 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) 2026-04-24 04:15:21 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:15:21 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:15:21 INFO imstat::::casa ########################################## 2026-04-24 04:15:21 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:15:21 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 ) 2026-04-24 04:15:21 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:15:21 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:15:21 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:15:21 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:15:21 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:15:21 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-24 04:15:21 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:15:21 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:15:21 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:15:21 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:15:21 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:15:21 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:15:21 INFO imstat:::: Values --- 2026-04-24 04:15:21 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:15:21 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:15:21 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:15:21 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-04-24 04:15:21 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:15:21 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:15:21 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:15:21 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-04-24 04:15:21 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:15:21 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:15:21 INFO imstat:::: Statistics --- 2026-04-24 04:15:21 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:15:21 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:15:21 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:15:21 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:15:21 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-04-24 04:15:21 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-04-24 04:15:21 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-04-24 04:15:21 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-04-24 04:15:21 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-04-24 04:15:21 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:15:21 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:15:21 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:15:21 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:15:21 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:15:21 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:15:21 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.778665e-05 4.999996e+00 2026-04-24 04:15:21 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:15:21.417985 End time: 2026-04-24 04:15:21.454981 2026-04-24 04:15:21 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:15:21 INFO imstat::::casa ########################################## 2026-04-24 04:15:21 INFO phaseshift::::casa ########################################## 2026-04-24 04:15:21 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:15:21 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 40d06m0.0019' ) 2026-04-24 04:15:22 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:15:22 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:15:22 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:15:22 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:15:22 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:15:22 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:15:22 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:15:22 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:15:22 INFO MSTransformManager::open Select data 2026-04-24 04:15:22 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:15:24 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:15:24 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 40d06m0.0019' successfully parsed 2026-04-24 04:15:24 INFO phaseshift::::casa Shift phase center 2026-04-24 04:15:25 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:15:25 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:15:21.482767 End time: 2026-04-24 04:15:25.149611 2026-04-24 04:15:25 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:15:25 INFO phaseshift::::casa ########################################## 2026-04-24 04:15:25 INFO tclean::::casa ########################################## 2026-04-24 04:15:25 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:15:25 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 ) 2026-04-24 04:15:25 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:15:25 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:15:25 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:15:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:15:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:15:25 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:15:25 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:15:25 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:15:25 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:15:25 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:15:25 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:15:25 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:15:27 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:15:27 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029046 2026-04-24 04:15:27 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:15:27 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:15:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:15:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:15:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:15:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:15:29 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:15:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:15:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:15:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:15:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:15:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:15:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:15:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:15:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:15:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:15:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:15:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:15:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:15:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:15:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:15:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:15:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:15:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:15:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:15:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:15:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:15:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:15:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:15:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:15:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:15:36 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:15:36 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:15:36 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:15:38 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:15:38 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:15:40 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:15:25.209479 End time: 2026-04-24 04:15:39.596987 2026-04-24 04:15:40 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:15:40 INFO tclean::::casa ########################################## 2026-04-24 04:15:40 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:15:40 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:15:40 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) 2026-04-24 04:15:40 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:15:40 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:15:40 2026****** 2026-04-24 04:15:40 INFO ImageFitter::fit+ 2026-04-24 04:15:40 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:15:40 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:15:40 INFO ImageFitter::fit+ --- region: 2026-04-24 04:15:40 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:15:40 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:15:40 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:15:40 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:15:40 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:15:40 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:15:40 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:15:40 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) 2026-04-24 04:15:40 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:15:40 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:15:40 INFO imstat::::casa ########################################## 2026-04-24 04:15:40 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:15:40 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 ) 2026-04-24 04:15:40 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:15:40 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:15:40 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:15:40 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:15:40 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:15:40 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) 2026-04-24 04:15:40 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:15:40 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:15:40 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:15:40 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:15:40 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:15:40 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:15:40 INFO imstat:::: Values --- 2026-04-24 04:15:40 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:15:40 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:15:40 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:15:40 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-04-24 04:15:40 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:15:40 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:15:40 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:15:40 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-04-24 04:15:40 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:15:40 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:15:40 INFO imstat:::: Statistics --- 2026-04-24 04:15:40 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:15:40 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:15:40 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:15:40 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:15:40 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-04-24 04:15:40 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-04-24 04:15:40 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-04-24 04:15:40 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-04-24 04:15:40 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-04-24 04:15:40 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:15:40 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:15:40 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:15:40 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:15:40 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:15:40 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:15:40 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 2026-04-24 04:15:40 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:15:39.673196 End time: 2026-04-24 04:15:39.700785 2026-04-24 04:15:40 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:15:40 INFO imstat::::casa ########################################## 2026-04-24 04:15:40 INFO phaseshift::::casa ########################################## 2026-04-24 04:15:40 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:15:40 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' ) 2026-04-24 04:15:40 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:15:40 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:15:40 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:15:40 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:15:40 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:15:40 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:15:40 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:15:40 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:15:40 INFO MSTransformManager::open Select data 2026-04-24 04:15:40 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:15:42 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 ".". 2026-04-24 04:15:42 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 02:40:24.0001' successfully parsed 2026-04-24 04:15:42 INFO phaseshift::::casa Shift phase center 2026-04-24 04:15:43 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:15:44 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:15:39.718212 End time: 2026-04-24 04:15:43.579600 2026-04-24 04:15:44 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:15:44 INFO phaseshift::::casa ########################################## 2026-04-24 04:15:44 INFO tclean::::casa ########################################## 2026-04-24 04:15:44 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:15:44 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 ) 2026-04-24 04:15:44 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:15:44 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:15:44 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:15:44 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:15:44 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:15:44 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:15:44 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:15:44 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:15:44 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:15:44 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:15:44 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:15:44 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:15:46 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:15:47 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026834 2026-04-24 04:15:47 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:15:47 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:15:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:15:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:15:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:15:49 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:15:49 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:15:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:15:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:15:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:15:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:15:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:15:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:15:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:15:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:15:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:15:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:15:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:15:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:15:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:15:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:15:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:15:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:15:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:15:53 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:15:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:15:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:15:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:15:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:15:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:15:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:15:55 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:15:55 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:15:55 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:15:56 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:15:56 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:15:58 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:15:43.640805 End time: 2026-04-24 04:15:58.111584 2026-04-24 04:15:58 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:15:58 INFO tclean::::casa ########################################## 2026-04-24 04:15:58 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:15:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:15:58 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) 2026-04-24 04:15:58 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:15:58 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:15:58 2026****** 2026-04-24 04:15:58 INFO ImageFitter::fit+ 2026-04-24 04:15:58 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:15:58 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:15:58 INFO ImageFitter::fit+ --- region: 2026-04-24 04:15:58 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:15:58 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:15:58 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:15:58 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:15:58 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:15:58 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:15:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:15:58 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) 2026-04-24 04:15:58 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:15:58 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:15:58 INFO imstat::::casa ########################################## 2026-04-24 04:15:58 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:15:58 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 ) 2026-04-24 04:15:58 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:15:58 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:15:58 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:15:58 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:15:58 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:15:58 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) 2026-04-24 04:15:58 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:15:58 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:15:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:15:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:15:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:15:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:15:58 INFO imstat:::: Values --- 2026-04-24 04:15:58 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:15:58 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:15:58 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:15:58 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-04-24 04:15:58 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:15:58 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-24 04:15:58 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:15:58 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-04-24 04:15:58 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:15:58 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:15:58 INFO imstat:::: Statistics --- 2026-04-24 04:15:58 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:15:58 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:15:58 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:15:58 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:15:58 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-04-24 04:15:58 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-04-24 04:15:58 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-04-24 04:15:58 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-04-24 04:15:58 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-04-24 04:15:58 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:15:58 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:15:58 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:15:58 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:15:58 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:15:58 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:15:58 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 2026-04-24 04:15:58 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:15:58.187394 End time: 2026-04-24 04:15:58.223673 2026-04-24 04:15:58 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:15:58 INFO imstat::::casa ########################################## 2026-04-24 04:15:58 INFO phaseshift::::casa ########################################## 2026-04-24 04:15:58 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:15:58 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 40.100000528deg' ) 2026-04-24 04:15:58 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:15:58 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:15:58 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:15:58 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:15:58 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:15:58 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:15:58 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:15:58 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:15:58 INFO MSTransformManager::open Select data 2026-04-24 04:15:58 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:16:02 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:16:02 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 40.100000528deg' successfully parsed 2026-04-24 04:16:02 INFO phaseshift::::casa Shift phase center 2026-04-24 04:16:03 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:16:03 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:15:58.239374 End time: 2026-04-24 04:16:03.433401 2026-04-24 04:16:03 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:16:03 INFO phaseshift::::casa ########################################## 2026-04-24 04:16:03 INFO tclean::::casa ########################################## 2026-04-24 04:16:03 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:16:03 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 ) 2026-04-24 04:16:03 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:16:03 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:16:03 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:16:04 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:16:04 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:16:04 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:16:04 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:16:04 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:16:04 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:16:04 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:16:04 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:16:04 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:16:05 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:16:05 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029486 2026-04-24 04:16:05 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:16:05 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:16:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:16:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:16:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:16:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:16:08 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:16:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:16:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:16:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:16:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:16:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:16:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:16:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:16:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:16:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:16:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:16:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:16:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:16:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:16:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:16:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:16:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:16:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:16:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:16:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:16:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:16:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:16:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:16:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:16:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:16:17 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:16:17 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:16:17 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:16:18 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:16:18 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:16:20 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:16:03.479142 End time: 2026-04-24 04:16:20.395845 2026-04-24 04:16:20 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:16:20 INFO tclean::::casa ########################################## 2026-04-24 04:16:20 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:16:20 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:16:20 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) 2026-04-24 04:16:20 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:16:20 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:16:20 2026****** 2026-04-24 04:16:20 INFO ImageFitter::fit+ 2026-04-24 04:16:20 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:16:20 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:16:20 INFO ImageFitter::fit+ --- region: 2026-04-24 04:16:20 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:16:20 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:16:20 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:16:20 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:16:20 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:16:20 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:16:20 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:16:20 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) 2026-04-24 04:16:20 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:16:20 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:16:20 INFO imstat::::casa ########################################## 2026-04-24 04:16:20 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:16:20 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 ) 2026-04-24 04:16:20 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:16:20 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:16:20 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:16:20 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:16:20 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:16:20 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) 2026-04-24 04:16:20 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:16:20 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:16:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:16:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:16:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:16:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:16:20 INFO imstat:::: Values --- 2026-04-24 04:16:20 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:16:20 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:16:20 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:16:20 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-04-24 04:16:20 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:16:20 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:16:20 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:16:20 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-04-24 04:16:20 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:16:20 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:16:20 INFO imstat:::: Statistics --- 2026-04-24 04:16:20 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:16:20 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:16:20 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:16:20 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:16:20 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-04-24 04:16:20 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-04-24 04:16:20 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-04-24 04:16:20 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-04-24 04:16:20 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-04-24 04:16:20 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:16:20 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:16:20 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:16:20 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:16:20 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:16:20 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:16:20 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 2026-04-24 04:16:20 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:16:20.471269 End time: 2026-04-24 04:16:20.497150 2026-04-24 04:16:20 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:16:20 INFO imstat::::casa ########################################## 2026-04-24 04:16:21 INFO phaseshift::::casa ########################################## 2026-04-24 04:16:21 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:16:21 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 19:53:49.9980 0.699877039rad' ) 2026-04-24 04:16:21 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:16:21 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:16:21 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:16:21 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:16:21 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:16:21 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:16:21 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:16:21 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:16:21 INFO MSTransformManager::open Select data 2026-04-24 04:16:21 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:16:23 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:16:23 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 19:53:49.9980 0.699877039rad' successfully parsed 2026-04-24 04:16:23 INFO phaseshift::::casa Shift phase center 2026-04-24 04:16:24 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:16:24 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:16:20.513671 End time: 2026-04-24 04:16:24.363379 2026-04-24 04:16:24 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:16:24 INFO phaseshift::::casa ########################################## 2026-04-24 04:16:24 INFO tclean::::casa ########################################## 2026-04-24 04:16:24 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:16:24 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 ) 2026-04-24 04:16:24 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:16:24 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:16:24 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:16:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:16:25 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:16:25 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:16:25 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:16:25 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:16:25 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:16:25 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:16:25 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:16:25 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:16:26 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:16:26 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027504 2026-04-24 04:16:26 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:16:26 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:16:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:16:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:16:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:16:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:16:29 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:16:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:16:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:16:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:16:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:16:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:16:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:16:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:16:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:16:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:16:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:16:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:16:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:16:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:16:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:16:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:16:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:16:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:16:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:16:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:16:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:16:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:16:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:16:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:16:35 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:16:35 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:16:35 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:16:35 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:16:36 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:16:37 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:16:38 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:16:24.423679 End time: 2026-04-24 04:16:38.001285 2026-04-24 04:16:38 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:16:38 INFO tclean::::casa ########################################## 2026-04-24 04:16:38 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:16:38 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:16:38 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) 2026-04-24 04:16:38 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:16:38 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:16:38 2026****** 2026-04-24 04:16:38 INFO ImageFitter::fit+ 2026-04-24 04:16:38 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:16:38 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:16:38 INFO ImageFitter::fit+ --- region: 2026-04-24 04:16:38 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:16:38 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:16:38 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:16:38 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:16:38 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:16:38 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:16:38 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:16:38 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) 2026-04-24 04:16:38 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:16:38 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:16:38 INFO imstat::::casa ########################################## 2026-04-24 04:16:38 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:16:38 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 ) 2026-04-24 04:16:38 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:16:38 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:16:38 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:16:38 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:16:38 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:16:38 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) 2026-04-24 04:16:38 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:16:38 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:16:38 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:16:38 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:16:38 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:16:38 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:16:38 INFO imstat:::: Values --- 2026-04-24 04:16:38 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:16:38 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:16:38 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:16:38 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-04-24 04:16:38 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:16:38 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:16:38 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:16:38 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-04-24 04:16:38 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:16:38 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:16:38 INFO imstat:::: Statistics --- 2026-04-24 04:16:38 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:16:38 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:16:38 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:16:38 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:16:38 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-04-24 04:16:38 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-04-24 04:16:38 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-04-24 04:16:38 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-04-24 04:16:38 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-04-24 04:16:38 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:16:38 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:16:38 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:16:38 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:16:38 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:16:38 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:16:38 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 2026-04-24 04:16:38 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:16:38.078318 End time: 2026-04-24 04:16:38.112416 2026-04-24 04:16:38 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:16:38 INFO imstat::::casa ########################################## 2026-04-24 04:16:38 INFO phaseshift::::casa ########################################## 2026-04-24 04:16:38 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:16:38 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 40d06m0.0019' ) 2026-04-24 04:16:38 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:16:38 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:16:38 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:16:38 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:16:38 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:16:38 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:16:38 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:16:38 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:16:38 INFO MSTransformManager::open Select data 2026-04-24 04:16:38 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:16:41 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:16:41 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 40d06m0.0019' successfully parsed 2026-04-24 04:16:41 INFO phaseshift::::casa Shift phase center 2026-04-24 04:16:42 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:16:42 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:16:38.129211 End time: 2026-04-24 04:16:42.478754 2026-04-24 04:16:42 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:16:42 INFO phaseshift::::casa ########################################## 2026-04-24 04:16:43 INFO tclean::::casa ########################################## 2026-04-24 04:16:43 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:16:43 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 ) 2026-04-24 04:16:43 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:16:43 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:16:43 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:16:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:16:43 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:16:43 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:16:43 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:16:43 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:16:43 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:16:43 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:16:43 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:16:43 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:16:44 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:16:44 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028863 2026-04-24 04:16:44 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:16:44 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:16:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:16:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:16:46 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:16:46 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:16:46 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:16:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:16:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:16:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:16:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:16:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:16:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:16:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:16:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:16:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:16:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:16:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:16:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:16:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:16:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:16:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:16:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:16:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:16:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:16:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:16:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:16:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:16:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:16:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:16:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:16:52 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:16:52 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:16:52 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:16:53 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:16:53 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:16:54 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:16:42.538715 End time: 2026-04-24 04:16:53.598705 2026-04-24 04:16:54 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:16:54 INFO tclean::::casa ########################################## 2026-04-24 04:16:54 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:16:54 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:16:54 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-24 04:16:54 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:16:54 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:16:54 2026****** 2026-04-24 04:16:54 INFO ImageFitter::fit+ 2026-04-24 04:16:54 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:16:54 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:16:54 INFO ImageFitter::fit+ --- region: 2026-04-24 04:16:54 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:16:54 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:16:54 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:16:54 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:16:54 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:16:54 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:16:54 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:16:54 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) 2026-04-24 04:16:54 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:16:54 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:16:54 INFO imstat::::casa ########################################## 2026-04-24 04:16:54 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:16:54 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 ) 2026-04-24 04:16:54 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:16:54 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:16:54 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:16:54 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:16:54 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:16:54 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) 2026-04-24 04:16:54 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:16:54 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:16:54 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:16:54 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:16:54 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:16:54 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:16:54 INFO imstat:::: Values --- 2026-04-24 04:16:54 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:16:54 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:16:54 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:16:54 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-04-24 04:16:54 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:16:54 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:16:54 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:16:54 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-04-24 04:16:54 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:16:54 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:16:54 INFO imstat:::: Statistics --- 2026-04-24 04:16:54 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:16:54 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:16:54 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:16:54 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:16:54 INFO imstat:::: -- Median of the pixel values [median]: -1.86712e-05 Jy/beam 2026-04-24 04:16:54 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73636e-05 Jy/beam 2026-04-24 04:16:54 INFO imstat:::: -- IQR [quartile]: 3.56293e-05 Jy/beam 2026-04-24 04:16:54 INFO imstat:::: -- First quartile [q1]: -3.45095e-05 Jy/beam 2026-04-24 04:16:54 INFO imstat:::: -- Third quartile [q3]: 1.1198e-06 Jy/beam 2026-04-24 04:16:54 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:16:54 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:16:54 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:16:54 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:16:54 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:16:54 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:16:54 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 2026-04-24 04:16:54 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:16:53.681645 End time: 2026-04-24 04:16:53.711093 2026-04-24 04:16:54 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:16:54 INFO imstat::::casa ########################################## 2026-04-24 04:16:54 INFO phaseshift::::casa ########################################## 2026-04-24 04:16:54 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:16:54 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' ) 2026-04-24 04:16:54 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:16:54 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:16:54 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:16:54 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:16:54 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:16:54 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:16:54 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:16:54 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:16:54 INFO MSTransformManager::open Select data 2026-04-24 04:16:54 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:16:57 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 ".". 2026-04-24 04:16:57 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 02:40:24.0001' successfully parsed 2026-04-24 04:16:57 INFO phaseshift::::casa Shift phase center 2026-04-24 04:16:58 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:16:58 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:16:53.728982 End time: 2026-04-24 04:16:58.197499 2026-04-24 04:16:58 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:16:58 INFO phaseshift::::casa ########################################## 2026-04-24 04:16:58 INFO tclean::::casa ########################################## 2026-04-24 04:16:58 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:16:58 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, 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 ) 2026-04-24 04:16:58 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:16:58 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:16:58 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:16:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:16:58 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:16:58 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:16:58 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:16:58 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:16:58 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:16:58 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:16:58 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:16:58 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:17:00 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:17:00 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025361 2026-04-24 04:17:00 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:17:00 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:17:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:17:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:17:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:17:02 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:17:02 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:17:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:17:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:17:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:17:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:17:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:17:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:17:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:17:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:17:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:17:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:17:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:17:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:17:05 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:17:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:17:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:17:06 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:17:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:17:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:17:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:17:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:17:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:17:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:17:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:17:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:17:09 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:17:09 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:17:09 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:17:10 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:17:11 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:17:13 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:16:58.254730 End time: 2026-04-24 04:17:12.960200 2026-04-24 04:17:13 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:17:13 INFO tclean::::casa ########################################## 2026-04-24 04:17:13 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:17:13 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:17:13 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) 2026-04-24 04:17:13 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:17:13 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:17:13 2026****** 2026-04-24 04:17:13 INFO ImageFitter::fit+ 2026-04-24 04:17:13 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:17:13 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:17:13 INFO ImageFitter::fit+ --- region: 2026-04-24 04:17:13 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:17:13 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:17:13 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:17:13 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:17:13 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:17:13 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:17:13 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:17:13 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) 2026-04-24 04:17:13 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116891 Jy 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126504 Jy 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:17:13 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:17:13 INFO imstat::::casa ########################################## 2026-04-24 04:17:13 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:17:13 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 ) 2026-04-24 04:17:13 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:17:13 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:17:13 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:17:13 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:17:13 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:17:13 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) 2026-04-24 04:17:13 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:17:13 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:17:13 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:17:13 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:17:13 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:17:13 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:17:13 INFO imstat:::: Values --- 2026-04-24 04:17:13 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:17:13 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:17:13 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:17:13 INFO imstat:::: -- minimum value [min]: -7.78094e-05 Jy/beam 2026-04-24 04:17:13 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:17:13 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-24 04:17:13 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:17:13 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-04-24 04:17:13 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:17:13 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:17:13 INFO imstat:::: Statistics --- 2026-04-24 04:17:13 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:17:13 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:17:13 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:17:13 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:17:13 INFO imstat:::: -- Median of the pixel values [median]: -1.86846e-05 Jy/beam 2026-04-24 04:17:13 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73901e-05 Jy/beam 2026-04-24 04:17:13 INFO imstat:::: -- IQR [quartile]: 3.56505e-05 Jy/beam 2026-04-24 04:17:13 INFO imstat:::: -- First quartile [q1]: -3.45202e-05 Jy/beam 2026-04-24 04:17:13 INFO imstat:::: -- Third quartile [q3]: 1.13024e-06 Jy/beam 2026-04-24 04:17:13 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:17:13 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:17:13 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:17:13 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:17:13 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:17:13 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:17:13 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 2026-04-24 04:17:13 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:17:13.042829 End time: 2026-04-24 04:17:13.084556 2026-04-24 04:17:13 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:17:13 INFO imstat::::casa ########################################## 2026-04-24 04:17:13 INFO phaseshift::::casa ########################################## 2026-04-24 04:17:13 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:17:13 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 40.100000528deg' ) 2026-04-24 04:17:13 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:17:13 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:17:13 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:17:13 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:17:13 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:17:13 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:17:13 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:17:13 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:17:13 INFO MSTransformManager::open Select data 2026-04-24 04:17:13 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:17:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:17:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 40.100000528deg' successfully parsed 2026-04-24 04:17:18 INFO phaseshift::::casa Shift phase center 2026-04-24 04:17:19 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:17:20 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:17:13.102066 End time: 2026-04-24 04:17:19.502655 2026-04-24 04:17:20 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:17:20 INFO phaseshift::::casa ########################################## 2026-04-24 04:17:20 INFO tclean::::casa ########################################## 2026-04-24 04:17:20 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:17:20 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, 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 ) 2026-04-24 04:17:20 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:17:20 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:17:20 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:17:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:17:20 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:17:20 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:17:20 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:17:20 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:17:20 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:17:20 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:17:20 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:17:20 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:17:21 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:17:21 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027705 2026-04-24 04:17:21 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:17:21 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:17:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:17:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:17:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:17:23 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:17:23 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:17:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:17:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:17:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:17:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:17:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:17:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:17:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:17:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:17:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:17:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:17:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:17:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:17:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:17:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:17:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:17:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:17:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:17:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:17:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:17:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:17:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:17:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:17:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:17:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:17:32 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:17:32 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:17:32 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:17:33 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:17:33 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:17:34 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:17:19.553513 End time: 2026-04-24 04:17:34.210002 2026-04-24 04:17:34 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:17:34 INFO tclean::::casa ########################################## 2026-04-24 04:17:34 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:17:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:17:34 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) 2026-04-24 04:17:34 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:17:34 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:17:34 2026****** 2026-04-24 04:17:34 INFO ImageFitter::fit+ 2026-04-24 04:17:34 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:17:34 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:17:34 INFO ImageFitter::fit+ --- region: 2026-04-24 04:17:34 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:17:34 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:17:34 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:17:34 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:17:34 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:17:34 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:17:34 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:17:34 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) 2026-04-24 04:17:34 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116876 Jy 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:17:34 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:17:34 INFO imstat::::casa ########################################## 2026-04-24 04:17:34 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:17:34 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 ) 2026-04-24 04:17:34 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:17:34 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:17:34 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:17:34 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:17:34 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:17:34 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) 2026-04-24 04:17:34 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:17:34 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:17:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:17:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:17:34 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:17:34 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:17:34 INFO imstat:::: Values --- 2026-04-24 04:17:34 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:17:34 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:17:34 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:17:34 INFO imstat:::: -- minimum value [min]: -7.77954e-05 Jy/beam 2026-04-24 04:17:34 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:17:34 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:17:34 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:17:34 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-04-24 04:17:34 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:17:34 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:17:34 INFO imstat:::: Statistics --- 2026-04-24 04:17:34 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:17:34 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:17:34 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:17:34 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:17:34 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-04-24 04:17:34 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73637e-05 Jy/beam 2026-04-24 04:17:34 INFO imstat:::: -- IQR [quartile]: 3.56311e-05 Jy/beam 2026-04-24 04:17:34 INFO imstat:::: -- First quartile [q1]: -3.45119e-05 Jy/beam 2026-04-24 04:17:34 INFO imstat:::: -- Third quartile [q3]: 1.11928e-06 Jy/beam 2026-04-24 04:17:34 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:17:34 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:17:34 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:17:34 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:17:34 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:17:34 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:17:34 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 2026-04-24 04:17:34 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:17:34.280039 End time: 2026-04-24 04:17:34.306688 2026-04-24 04:17:34 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:17:34 INFO imstat::::casa ########################################## 2026-04-24 04:17:34 INFO phaseshift::::casa ########################################## 2026-04-24 04:17:34 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:17:34 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 298.458325000deg 0.699877039rad' ) 2026-04-24 04:17:34 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:17:34 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:17:34 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:17:34 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:17:34 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:17:34 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:17:34 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:17:34 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:17:34 INFO MSTransformManager::open Select data 2026-04-24 04:17:34 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:17:38 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:17:38 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 298.458325000deg 0.699877039rad' successfully parsed 2026-04-24 04:17:38 INFO phaseshift::::casa Shift phase center 2026-04-24 04:17:39 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:17:39 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:17:34.331203 End time: 2026-04-24 04:17:38.838279 2026-04-24 04:17:39 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:17:39 INFO phaseshift::::casa ########################################## 2026-04-24 04:17:39 INFO tclean::::casa ########################################## 2026-04-24 04:17:39 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:17:39 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 ) 2026-04-24 04:17:39 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:17:39 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:17:39 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:17:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:17:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:17:39 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:17:39 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:17:39 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:17:39 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:17:39 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:17:39 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:17:39 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:17:40 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:17:40 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.0269 2026-04-24 04:17:40 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:17:40 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:17:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:17:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:17:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:17:42 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:17:42 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:17:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:17:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:17:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:17:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:17:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:17:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:17:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:17:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:17:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:17:44 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:17:44 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:17:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:17:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:17:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:17:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:17:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:17:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:17:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:17:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:17:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:17:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:17:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:17:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:17:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:17:48 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:17:48 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:17:48 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:17:49 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:17:50 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:17:51 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:17:38.874306 End time: 2026-04-24 04:17:50.978655 2026-04-24 04:17:51 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:17:51 INFO tclean::::casa ########################################## 2026-04-24 04:17:51 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:17:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:17:51 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) 2026-04-24 04:17:51 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:17:51 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:17:51 2026****** 2026-04-24 04:17:51 INFO ImageFitter::fit+ 2026-04-24 04:17:51 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:17:51 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:17:51 INFO ImageFitter::fit+ --- region: 2026-04-24 04:17:51 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:17:51 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:17:51 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:17:51 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:17:51 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:17:51 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:17:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:17:51 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) 2026-04-24 04:17:51 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012649 Jy 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ --- ra: 127.999970 +/- 0.000127 pixels 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:17:51 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:17:51 INFO imstat::::casa ########################################## 2026-04-24 04:17:51 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:17:51 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 ) 2026-04-24 04:17:51 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:17:51 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:17:51 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:17:51 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:17:51 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:17:51 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) 2026-04-24 04:17:51 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:17:51 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:17:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:17:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:17:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:17:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:17:51 INFO imstat:::: Values --- 2026-04-24 04:17:51 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:17:51 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:17:51 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:17:51 INFO imstat:::: -- minimum value [min]: -7.77867e-05 Jy/beam 2026-04-24 04:17:51 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:17:51 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:17:51 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:17:51 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-04-24 04:17:51 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:17:51 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:17:51 INFO imstat:::: Statistics --- 2026-04-24 04:17:51 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:17:51 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:17:51 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:17:51 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:17:51 INFO imstat:::: -- Median of the pixel values [median]: -1.86761e-05 Jy/beam 2026-04-24 04:17:51 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73623e-05 Jy/beam 2026-04-24 04:17:51 INFO imstat:::: -- IQR [quartile]: 3.56319e-05 Jy/beam 2026-04-24 04:17:51 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-04-24 04:17:51 INFO imstat:::: -- Third quartile [q3]: 1.11659e-06 Jy/beam 2026-04-24 04:17:51 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:17:51 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:17:51 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:17:51 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:17:51 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:17:51 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:17:51 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 2026-04-24 04:17:51 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:17:51.042136 End time: 2026-04-24 04:17:51.066992 2026-04-24 04:17:51 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:17:51 INFO imstat::::casa ########################################## 2026-04-24 04:17:51 INFO phaseshift::::casa ########################################## 2026-04-24 04:17:51 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:17:51 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 5.209080451rad 40d06m0.0019' ) 2026-04-24 04:17:51 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:17:51 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:17:51 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:17:51 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:17:51 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:17:51 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:17:51 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:17:51 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:17:51 INFO MSTransformManager::open Select data 2026-04-24 04:17:51 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:17:54 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:17:54 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 40d06m0.0019' successfully parsed 2026-04-24 04:17:54 INFO phaseshift::::casa Shift phase center 2026-04-24 04:17:55 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:17:55 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:17:51.083446 End time: 2026-04-24 04:17:55.468788 2026-04-24 04:17:55 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:17:55 INFO phaseshift::::casa ########################################## 2026-04-24 04:17:56 INFO tclean::::casa ########################################## 2026-04-24 04:17:56 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:17:56 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, 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 ) 2026-04-24 04:17:56 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:17:56 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:17:56 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:17:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:17:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:17:56 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:17:56 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:17:56 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:17:56 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:17:56 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:17:56 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:17:56 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:17:57 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:17:57 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020521 2026-04-24 04:17:57 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:17:57 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:17:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:17:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:17:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:17:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:17:59 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:17:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:17:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:18:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:18:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:18:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:18:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:18:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:18:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:18:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:18:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:18:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:18:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:18:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:18:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:18:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:18:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:18:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:18:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:18:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:18:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:18:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:18:04 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:18:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:18:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:18:05 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:18:05 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:18:05 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:18:06 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:18:07 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:18:09 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:17:55.525200 End time: 2026-04-24 04:18:08.983597 2026-04-24 04:18:09 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:18:09 INFO tclean::::casa ########################################## 2026-04-24 04:18:09 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:18:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:18:09 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) 2026-04-24 04:18:09 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:18:09 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:18:09 2026****** 2026-04-24 04:18:09 INFO ImageFitter::fit+ 2026-04-24 04:18:09 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:18:09 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:18:09 INFO ImageFitter::fit+ --- region: 2026-04-24 04:18:09 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:18:09 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:18:09 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:18:09 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:18:09 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:18:09 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:18:09 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:18:09 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) 2026-04-24 04:18:09 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116878 Jy 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126494 Jy 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999997 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:18:09 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:18:09 INFO imstat::::casa ########################################## 2026-04-24 04:18:09 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:18:09 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 ) 2026-04-24 04:18:09 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:18:09 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:18:09 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:18:09 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:18:09 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:18:09 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) 2026-04-24 04:18:09 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:18:09 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:18:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:18:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:18:09 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:18:09 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:18:09 INFO imstat:::: Values --- 2026-04-24 04:18:09 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:18:09 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:18:09 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:18:09 INFO imstat:::: -- minimum value [min]: -7.77984e-05 Jy/beam 2026-04-24 04:18:09 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:18:09 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:18:09 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:18:09 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-04-24 04:18:09 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:18:09 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:18:09 INFO imstat:::: Statistics --- 2026-04-24 04:18:09 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:18:09 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:18:09 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:18:09 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:18:09 INFO imstat:::: -- Median of the pixel values [median]: -1.86704e-05 Jy/beam 2026-04-24 04:18:09 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7365e-05 Jy/beam 2026-04-24 04:18:09 INFO imstat:::: -- IQR [quartile]: 3.56348e-05 Jy/beam 2026-04-24 04:18:09 INFO imstat:::: -- First quartile [q1]: -3.45131e-05 Jy/beam 2026-04-24 04:18:09 INFO imstat:::: -- Third quartile [q3]: 1.12172e-06 Jy/beam 2026-04-24 04:18:09 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:18:09 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:18:09 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:18:09 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:18:09 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:18:09 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:18:09 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 2026-04-24 04:18:09 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:18:09.072832 End time: 2026-04-24 04:18:09.102738 2026-04-24 04:18:09 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:18:09 INFO imstat::::casa ########################################## 2026-04-24 04:18:09 INFO phaseshift::::casa ########################################## 2026-04-24 04:18:09 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:18:09 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 02:40:24.0001' ) 2026-04-24 04:18:09 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:18:09 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:18:09 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:18:09 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:18:09 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:18:09 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:18:09 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:18:09 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:18:09 INFO MSTransformManager::open Select data 2026-04-24 04:18:09 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:18:14 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:40:24.0001" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-04-24 04:18:14 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 02:40:24.0001' successfully parsed 2026-04-24 04:18:14 INFO phaseshift::::casa Shift phase center 2026-04-24 04:18:16 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:18:16 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:18:09.121365 End time: 2026-04-24 04:18:15.791559 2026-04-24 04:18:16 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:18:16 INFO phaseshift::::casa ########################################## 2026-04-24 04:18:16 INFO tclean::::casa ########################################## 2026-04-24 04:18:16 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:18:16 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, 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 ) 2026-04-24 04:18:16 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:18:16 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:18:16 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:18:16 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:18:16 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:18:16 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:18:16 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:18:16 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:18:16 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:18:16 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:18:16 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:18:16 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:18:17 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:18:18 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029305 2026-04-24 04:18:18 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:18:18 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:18:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:18:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:18:20 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:18:20 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:18:20 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:18:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:18:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:18:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:18:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:18:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:18:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:18:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:18:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:18:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:18:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:18:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:18:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:18:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:18:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:18:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:18:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:18:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:18:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:18:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:18:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:18:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:18:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:18:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:18:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:18:27 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:18:27 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:18:27 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:18:27 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:18:28 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:18:29 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:18:15.848529 End time: 2026-04-24 04:18:28.526670 2026-04-24 04:18:29 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:18:29 INFO tclean::::casa ########################################## 2026-04-24 04:18:29 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:18:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:18:29 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) 2026-04-24 04:18:29 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:18:29 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:18:29 2026****** 2026-04-24 04:18:29 INFO ImageFitter::fit+ 2026-04-24 04:18:29 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:18:29 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:18:29 INFO ImageFitter::fit+ --- region: 2026-04-24 04:18:29 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:18:29 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:18:29 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:18:29 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:18:29 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:18:29 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:18:29 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:18:29 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) 2026-04-24 04:18:29 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116894 Jy 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126508 Jy 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999957 +/- 0.000777 arcsec 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ --- dec: 128.000047 +/- 0.000097 pixels 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:18:29 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:18:29 INFO imstat::::casa ########################################## 2026-04-24 04:18:29 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:18:29 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 ) 2026-04-24 04:18:29 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:18:29 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:18:29 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:18:29 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:18:29 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:18:29 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) 2026-04-24 04:18:29 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:18:29 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:18:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:18:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:18:29 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:18:29 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:18:29 INFO imstat:::: Values --- 2026-04-24 04:18:29 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:18:29 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:18:29 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:18:29 INFO imstat:::: -- minimum value [min]: -7.78076e-05 Jy/beam 2026-04-24 04:18:29 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:18:29 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-24 04:18:29 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:18:29 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.659, I, 999981612.9Hz 2026-04-24 04:18:29 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:18:29 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:18:29 INFO imstat:::: Statistics --- 2026-04-24 04:18:29 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:18:29 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:18:29 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:18:29 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:18:29 INFO imstat:::: -- Median of the pixel values [median]: -1.86848e-05 Jy/beam 2026-04-24 04:18:29 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73951e-05 Jy/beam 2026-04-24 04:18:29 INFO imstat:::: -- IQR [quartile]: 3.56676e-05 Jy/beam 2026-04-24 04:18:29 INFO imstat:::: -- First quartile [q1]: -3.45186e-05 Jy/beam 2026-04-24 04:18:29 INFO imstat:::: -- Third quartile [q3]: 1.14894e-06 Jy/beam 2026-04-24 04:18:29 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:18:29 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:18:29 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:18:29 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:18:29 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:18:29 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:18:29 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 2026-04-24 04:18:29 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:18:28.585317 End time: 2026-04-24 04:18:28.608703 2026-04-24 04:18:29 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:18:29 INFO imstat::::casa ########################################## 2026-04-24 04:18:29 INFO phaseshift::::casa ########################################## 2026-04-24 04:18:29 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:18:29 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 40.100000528deg' ) 2026-04-24 04:18:29 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:18:29 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:18:29 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:18:29 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:18:29 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:18:29 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:18:29 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:18:29 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:18:29 INFO MSTransformManager::open Select data 2026-04-24 04:18:29 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:18:31 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:18:31 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 40.100000528deg' successfully parsed 2026-04-24 04:18:31 INFO phaseshift::::casa Shift phase center 2026-04-24 04:18:32 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:18:32 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:18:28.635221 End time: 2026-04-24 04:18:31.778524 2026-04-24 04:18:32 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:18:32 INFO phaseshift::::casa ########################################## 2026-04-24 04:18:32 INFO tclean::::casa ########################################## 2026-04-24 04:18:32 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:18:32 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, 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 ) 2026-04-24 04:18:32 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:18:32 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:18:32 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:18:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:18:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:18:32 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:18:32 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:18:32 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:18:32 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:18:32 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:18:32 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:18:32 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:18:33 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:18:33 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.02507 2026-04-24 04:18:33 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:18:33 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:18:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:18:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:18:34 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:18:34 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:18:34 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:18:34 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:18:34 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:18:35 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:18:35 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:18:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:18:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:18:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:18:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:18:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:18:36 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:18:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:18:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:18:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:18:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:18:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:18:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:18:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:18:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:18:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:18:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:18:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:18:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:18:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:18:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:18:39 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:18:39 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:18:39 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:18:39 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:18:40 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:18:41 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:18:31.826902 End time: 2026-04-24 04:18:40.842034 2026-04-24 04:18:41 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:18:41 INFO tclean::::casa ########################################## 2026-04-24 04:18:41 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:18:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:18:41 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) 2026-04-24 04:18:41 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:18:41 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:18:41 2026****** 2026-04-24 04:18:41 INFO ImageFitter::fit+ 2026-04-24 04:18:41 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:18:41 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:18:41 INFO ImageFitter::fit+ --- region: 2026-04-24 04:18:41 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:18:41 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:18:41 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:18:41 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:18:41 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:18:41 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:18:41 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:18:41 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) 2026-04-24 04:18:41 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116882 Jy 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999998 +/- 0.000777 arcsec 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ --- dec: 128.000003 +/- 0.000097 pixels 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:18:41 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:18:41 INFO imstat::::casa ########################################## 2026-04-24 04:18:41 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:18:41 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 ) 2026-04-24 04:18:41 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:18:41 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:18:41 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:18:41 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:18:41 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:18:41 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) 2026-04-24 04:18:41 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:18:41 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:18:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:18:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:18:41 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:18:41 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:18:41 INFO imstat:::: Values --- 2026-04-24 04:18:41 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:18:41 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:18:41 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:18:41 INFO imstat:::: -- minimum value [min]: -7.77982e-05 Jy/beam 2026-04-24 04:18:41 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:18:41 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:18:41 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:18:41 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-04-24 04:18:41 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:18:41 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:18:41 INFO imstat:::: Statistics --- 2026-04-24 04:18:41 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:18:41 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:18:41 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:18:41 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:18:41 INFO imstat:::: -- Median of the pixel values [median]: -1.86711e-05 Jy/beam 2026-04-24 04:18:41 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73646e-05 Jy/beam 2026-04-24 04:18:41 INFO imstat:::: -- IQR [quartile]: 3.56367e-05 Jy/beam 2026-04-24 04:18:41 INFO imstat:::: -- First quartile [q1]: -3.45138e-05 Jy/beam 2026-04-24 04:18:41 INFO imstat:::: -- Third quartile [q3]: 1.12291e-06 Jy/beam 2026-04-24 04:18:41 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:18:41 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:18:41 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:18:41 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:18:41 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:18:41 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:18:41 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 2026-04-24 04:18:41 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:18:40.923903 End time: 2026-04-24 04:18:40.951523 2026-04-24 04:18:41 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:18:41 INFO imstat::::casa ########################################## 2026-04-24 04:18:41 INFO phaseshift::::casa ########################################## 2026-04-24 04:18:41 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:18:41 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='ICRS 5.209080451rad 0.699877039rad' ) 2026-04-24 04:18:41 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:18:41 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:18:41 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:18:41 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:18:41 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:18:41 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:18:41 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:18:41 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:18:41 INFO MSTransformManager::open Select data 2026-04-24 04:18:41 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:18:43 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:18:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'ICRS 5.209080451rad 0.699877039rad' successfully parsed 2026-04-24 04:18:44 INFO phaseshift::::casa Shift phase center 2026-04-24 04:18:44 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:18:44 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:18:40.968937 End time: 2026-04-24 04:18:44.398092 2026-04-24 04:18:44 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:18:44 INFO phaseshift::::casa ########################################## 2026-04-24 04:18:44 INFO tclean::::casa ########################################## 2026-04-24 04:18:44 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:18:44 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 ) 2026-04-24 04:18:44 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:18:44 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:18:44 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:18:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:18:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:18:45 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:18:45 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:18:45 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:18:45 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:18:45 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:18:45 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:18:45 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:18:46 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:18:46 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.016603 2026-04-24 04:18:46 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:18:46 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:18:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:18:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:18:47 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:18:47 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:18:47 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:18:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:18:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:18:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:18:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:18:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:18:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:18:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:18:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:18:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:18:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:18:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:18:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:18:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374443277716637, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:18:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:18:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:18:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:18:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:18:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:18:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852561634033918, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:18:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:18:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:18:51 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:18:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:18:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:18:51 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:18:51 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:18:51 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:18:52 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:18:52 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:18:53 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:18:44.448858 End time: 2026-04-24 04:18:53.226642 2026-04-24 04:18:53 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:18:53 INFO tclean::::casa ########################################## 2026-04-24 04:18:53 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:18:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:18:53 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) 2026-04-24 04:18:53 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:18:53 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:18:53 2026****** 2026-04-24 04:18:53 INFO ImageFitter::fit+ 2026-04-24 04:18:53 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:18:53 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:18:53 INFO ImageFitter::fit+ --- region: 2026-04-24 04:18:53 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:18:53 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:18:53 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:18:53 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:18:53 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:18:53 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:18:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:18:53 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) 2026-04-24 04:18:53 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999996 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ --- dec: +040.05.59.999992 +/- 0.000777 arcsec 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ --- ra: 127.999966 +/- 0.000127 pixels 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ --- dec: 128.000009 +/- 0.000097 pixels 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:18:53 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:18:53 INFO imstat::::casa ########################################## 2026-04-24 04:18:53 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:18:53 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 ) 2026-04-24 04:18:53 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:18:53 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:18:53 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:18:53 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:18:53 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:18:53 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) 2026-04-24 04:18:53 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:18:53 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:18:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:18:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:18:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:18:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:18:53 INFO imstat:::: Values --- 2026-04-24 04:18:53 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:18:53 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:18:53 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:18:53 INFO imstat:::: -- minimum value [min]: -7.77898e-05 Jy/beam 2026-04-24 04:18:53 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:18:53 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:18:53 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:18:53 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.660, I, 999981612.9Hz 2026-04-24 04:18:53 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:18:53 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:18:53 INFO imstat:::: Statistics --- 2026-04-24 04:18:53 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:18:53 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:18:53 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:18:53 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:18:53 INFO imstat:::: -- Median of the pixel values [median]: -1.86769e-05 Jy/beam 2026-04-24 04:18:53 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73662e-05 Jy/beam 2026-04-24 04:18:53 INFO imstat:::: -- IQR [quartile]: 3.5634e-05 Jy/beam 2026-04-24 04:18:53 INFO imstat:::: -- First quartile [q1]: -3.45153e-05 Jy/beam 2026-04-24 04:18:53 INFO imstat:::: -- Third quartile [q3]: 1.1187e-06 Jy/beam 2026-04-24 04:18:53 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:18:53 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:18:53 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:18:53 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:18:53 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:18:53 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:18:53 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 2026-04-24 04:18:53 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:18:53.302221 End time: 2026-04-24 04:18:53.338377 2026-04-24 04:18:53 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:18:53 INFO imstat::::casa ########################################## 2026-04-24 04:18:53 INFO phaseshift::::casa ########################################## 2026-04-24 04:18:53 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:18:53 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 +006d21m09.7433' ) 2026-04-24 04:18:53 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:18:53 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:18:53 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:18:53 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:18:53 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:18:53 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:18:53 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:18:53 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:18:53 INFO MSTransformManager::open Select data 2026-04-24 04:18:53 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:18:56 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:18:56 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 +006d21m09.7433' successfully parsed 2026-04-24 04:18:56 INFO phaseshift::::casa Shift phase center 2026-04-24 04:18:56 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:18:56 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:18:53.368950 End time: 2026-04-24 04:18:56.092893 2026-04-24 04:18:56 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:18:56 INFO phaseshift::::casa ########################################## 2026-04-24 04:18:56 INFO tclean::::casa ########################################## 2026-04-24 04:18:56 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:18:56 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, 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 ) 2026-04-24 04:18:56 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:18:56 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:18:56 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:18:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:18:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:18:56 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:18:56 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:18:56 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:18:56 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:18:56 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:18:56 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:18:56 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:18:57 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:18:57 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.024818 2026-04-24 04:18:57 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:18:57 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:18:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:18:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:18:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:18:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:18:59 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:18:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:18:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:19:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:19:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:19:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:19:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:19:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:19:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:19:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:19:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:19:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:19:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:19:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:19:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:19:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:19:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:19:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:19:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:19:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:19:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:19:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:19:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:19:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:19:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:19:04 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:19:04 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:19:04 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:19:04 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:19:05 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:19:06 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:18:56.152663 End time: 2026-04-24 04:19:05.797431 2026-04-24 04:19:06 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:19:06 INFO tclean::::casa ########################################## 2026-04-24 04:19:06 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:19:06 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:19:06 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-24 04:19:06 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:19:06 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:19:06 2026****** 2026-04-24 04:19:06 INFO ImageFitter::fit+ 2026-04-24 04:19:06 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:19:06 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:19:06 INFO ImageFitter::fit+ --- region: 2026-04-24 04:19:06 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:19:06 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:19:06 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:19:06 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:19:06 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:19:06 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:19:06 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:19:06 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-24 04:19:06 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:19:06 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:19:06 INFO imstat::::casa ########################################## 2026-04-24 04:19:06 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:19:06 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-24 04:19:06 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:19:06 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:19:06 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:19:06 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:19:06 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:19:06 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-24 04:19:06 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:19:06 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:19:06 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:19:06 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:19:06 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:19:06 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:19:06 INFO imstat:::: Values --- 2026-04-24 04:19:06 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:19:06 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:19:06 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:19:06 INFO imstat:::: -- minimum value [min]: -7.77795e-05 Jy/beam 2026-04-24 04:19:06 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:19:06 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:19:06 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:19:06 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:19:06 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:19:06 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:19:06 INFO imstat:::: Statistics --- 2026-04-24 04:19:06 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:19:06 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:19:06 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:19:06 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:19:06 INFO imstat:::: -- Median of the pixel values [median]: -1.86702e-05 Jy/beam 2026-04-24 04:19:06 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73612e-05 Jy/beam 2026-04-24 04:19:06 INFO imstat:::: -- IQR [quartile]: 3.56029e-05 Jy/beam 2026-04-24 04:19:06 INFO imstat:::: -- First quartile [q1]: -3.45082e-05 Jy/beam 2026-04-24 04:19:06 INFO imstat:::: -- Third quartile [q3]: 1.09472e-06 Jy/beam 2026-04-24 04:19:06 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:19:06 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:19:06 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:19:06 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:19:06 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:19:06 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:19:06 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 2026-04-24 04:19:06 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:19:05.849500 End time: 2026-04-24 04:19:05.870576 2026-04-24 04:19:06 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:19:06 INFO imstat::::casa ########################################## 2026-04-24 04:19:06 INFO phaseshift::::casa ########################################## 2026-04-24 04:19:06 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:19:06 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 00:25:24.6496' ) 2026-04-24 04:19:06 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:19:06 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:19:06 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:19:06 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:19:06 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:19:06 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:19:06 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:19:06 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:19:06 INFO MSTransformManager::open Select data 2026-04-24 04:19:06 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:19:08 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 ".". 2026-04-24 04:19:08 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 00:25:24.6496' successfully parsed 2026-04-24 04:19:08 INFO phaseshift::::casa Shift phase center 2026-04-24 04:19:08 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:19:08 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:19:05.885033 End time: 2026-04-24 04:19:08.485159 2026-04-24 04:19:08 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:19:08 INFO phaseshift::::casa ########################################## 2026-04-24 04:19:09 INFO tclean::::casa ########################################## 2026-04-24 04:19:09 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:19:09 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 ) 2026-04-24 04:19:09 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:19:09 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:19:09 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:19:09 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:19:09 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:19:09 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:19:09 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:19:09 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:19:09 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:19:09 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:19:09 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:19:09 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:19:10 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:19:10 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029138 2026-04-24 04:19:10 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:19:10 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:19:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:19:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:19:12 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:19:12 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:19:12 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:19:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:19:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:19:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:19:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:19:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:19:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:19:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:19:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:19:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:19:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:19:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:19:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:19:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:19:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:19:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:19:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:19:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:19:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:19:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:19:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:19:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:19:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:19:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:19:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:19:16 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:19:16 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:19:16 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:19:16 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:19:17 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:19:18 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:19:08.535450 End time: 2026-04-24 04:19:18.230024 2026-04-24 04:19:18 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:19:18 INFO tclean::::casa ########################################## 2026-04-24 04:19:18 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:19:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:19:18 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) 2026-04-24 04:19:18 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:19:18 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:19:18 2026****** 2026-04-24 04:19:18 INFO ImageFitter::fit+ 2026-04-24 04:19:18 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:19:18 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:19:18 INFO ImageFitter::fit+ --- region: 2026-04-24 04:19:18 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:19:18 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:19:18 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:19:18 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:19:18 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:19:18 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:19:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:19:18 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) 2026-04-24 04:19:18 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116907 Jy 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:19:18 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:19:18 INFO imstat::::casa ########################################## 2026-04-24 04:19:18 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:19:18 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 ) 2026-04-24 04:19:18 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:19:18 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:19:18 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:19:18 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:19:18 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:19:18 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) 2026-04-24 04:19:18 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:19:18 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:19:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:19:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:19:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-04-24 04:19:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-04-24 04:19:18 INFO imstat:::: Values --- 2026-04-24 04:19:18 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:19:18 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:19:18 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:19:18 INFO imstat:::: -- minimum value [min]: -7.78732e-05 Jy/beam 2026-04-24 04:19:18 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:19:18 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:19:18 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:19:18 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:19:18 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:19:18 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:19:18 INFO imstat:::: Statistics --- 2026-04-24 04:19:18 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:19:18 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:19:18 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:19:18 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:19:18 INFO imstat:::: -- Median of the pixel values [median]: -1.86516e-05 Jy/beam 2026-04-24 04:19:18 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73802e-05 Jy/beam 2026-04-24 04:19:18 INFO imstat:::: -- IQR [quartile]: 3.56959e-05 Jy/beam 2026-04-24 04:19:18 INFO imstat:::: -- First quartile [q1]: -3.45348e-05 Jy/beam 2026-04-24 04:19:18 INFO imstat:::: -- Third quartile [q3]: 1.16101e-06 Jy/beam 2026-04-24 04:19:18 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:19:18 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:19:18 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:19:18 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:19:18 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:19:18 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:19:18 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085647e+02 9.285960e-03 1.524530e-01 1.521711e-01 -7.787321e-05 4.999996e+00 2026-04-24 04:19:18 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:19:18.315910 End time: 2026-04-24 04:19:18.357797 2026-04-24 04:19:18 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:19:18 INFO imstat::::casa ########################################## 2026-04-24 04:19:18 INFO phaseshift::::casa ########################################## 2026-04-24 04:19:18 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:19:18 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 6.352706472deg' ) 2026-04-24 04:19:18 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:19:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:19:18 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:19:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:19:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:19:18 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:19:18 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:19:18 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:19:18 INFO MSTransformManager::open Select data 2026-04-24 04:19:18 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:19:21 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:19:21 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 6.352706472deg' successfully parsed 2026-04-24 04:19:21 INFO phaseshift::::casa Shift phase center 2026-04-24 04:19:22 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:19:22 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:19:18.384164 End time: 2026-04-24 04:19:22.278107 2026-04-24 04:19:22 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:19:22 INFO phaseshift::::casa ########################################## 2026-04-24 04:19:22 INFO tclean::::casa ########################################## 2026-04-24 04:19:22 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:19:22 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 ) 2026-04-24 04:19:22 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:19:22 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:19:22 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:19:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:19:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:19:23 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:19:23 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:19:23 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:19:23 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:19:23 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:19:23 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:19:23 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:19:23 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:19:23 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029185 2026-04-24 04:19:23 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:19:24 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:19:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:19:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:19:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:19:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:19:25 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:19:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:19:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:19:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:19:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:19:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:19:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:19:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:19:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:19:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:19:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:19:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:19:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:19:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:19:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:19:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:19:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:19:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:19:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:19:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:19:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:19:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:19:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:19:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:19:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:19:30 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:19:30 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:19:30 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:19:31 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:19:31 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:19:32 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:19:22.338539 End time: 2026-04-24 04:19:32.059685 2026-04-24 04:19:32 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:19:32 INFO tclean::::casa ########################################## 2026-04-24 04:19:32 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:19:32 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:19:32 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) 2026-04-24 04:19:32 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:19:32 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:19:32 2026****** 2026-04-24 04:19:32 INFO ImageFitter::fit+ 2026-04-24 04:19:32 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:19:32 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:19:32 INFO ImageFitter::fit+ --- region: 2026-04-24 04:19:32 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:19:32 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:19:32 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:19:32 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:19:32 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:19:32 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:19:32 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:19:32 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) 2026-04-24 04:19:32 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:19:32 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:19:32 INFO imstat::::casa ########################################## 2026-04-24 04:19:32 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:19:32 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 ) 2026-04-24 04:19:32 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:19:32 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:19:32 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:19:32 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:19:32 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:19:32 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) 2026-04-24 04:19:32 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:19:32 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:19:32 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:19:32 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:19:32 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:19:32 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:19:32 INFO imstat:::: Values --- 2026-04-24 04:19:32 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:19:32 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:19:32 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:19:32 INFO imstat:::: -- minimum value [min]: -7.7777e-05 Jy/beam 2026-04-24 04:19:32 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:19:32 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:19:32 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:19:32 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:19:32 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:19:32 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:19:32 INFO imstat:::: Statistics --- 2026-04-24 04:19:32 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:19:32 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:19:32 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:19:32 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:19:32 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-04-24 04:19:32 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7361e-05 Jy/beam 2026-04-24 04:19:32 INFO imstat:::: -- IQR [quartile]: 3.56027e-05 Jy/beam 2026-04-24 04:19:32 INFO imstat:::: -- First quartile [q1]: -3.45074e-05 Jy/beam 2026-04-24 04:19:32 INFO imstat:::: -- Third quartile [q3]: 1.09529e-06 Jy/beam 2026-04-24 04:19:32 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:19:32 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:19:32 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:19:32 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:19:32 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:19:32 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:19:32 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 2026-04-24 04:19:32 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:19:32.125667 End time: 2026-04-24 04:19:32.149855 2026-04-24 04:19:32 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:19:32 INFO imstat::::casa ########################################## 2026-04-24 04:19:32 INFO phaseshift::::casa ########################################## 2026-04-24 04:19:32 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:19:32 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05h00m21.5326 0.110875644rad' ) 2026-04-24 04:19:32 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:19:32 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:19:32 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:19:32 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:19:32 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:19:32 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:19:32 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:19:32 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:19:32 INFO MSTransformManager::open Select data 2026-04-24 04:19:32 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:19:34 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:19:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05h00m21.5326 0.110875644rad' successfully parsed 2026-04-24 04:19:34 INFO phaseshift::::casa Shift phase center 2026-04-24 04:19:35 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:19:35 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:19:32.165909 End time: 2026-04-24 04:19:35.270439 2026-04-24 04:19:35 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:19:35 INFO phaseshift::::casa ########################################## 2026-04-24 04:19:35 INFO tclean::::casa ########################################## 2026-04-24 04:19:35 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:19:35 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, 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 ) 2026-04-24 04:19:35 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:19:35 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:19:35 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:19:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:19:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:19:35 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:19:35 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:19:35 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:19:35 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:19:35 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:19:35 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:19:35 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:19:36 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:19:36 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026904 2026-04-24 04:19:36 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:19:36 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:19:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:19:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:19:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:19:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:19:38 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:19:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:19:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:19:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:19:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:19:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:19:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:19:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:19:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:19:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:19:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:19:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:19:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:19:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:19:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:19:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:19:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:19:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:19:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:19:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:19:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:19:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:19:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:19:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:19:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:19:43 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:19:43 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:19:43 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:19:43 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:19:43 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:19:44 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:19:35.324792 End time: 2026-04-24 04:19:44.199911 2026-04-24 04:19:44 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:19:44 INFO tclean::::casa ########################################## 2026-04-24 04:19:44 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:19:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:19:44 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-24 04:19:44 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:19:44 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:19:44 2026****** 2026-04-24 04:19:44 INFO ImageFitter::fit+ 2026-04-24 04:19:44 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:19:44 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:19:44 INFO ImageFitter::fit+ --- region: 2026-04-24 04:19:44 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:19:44 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:19:44 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:19:44 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:19:44 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:19:44 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:19:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:19:44 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-24 04:19:44 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:19:44 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:19:44 INFO imstat::::casa ########################################## 2026-04-24 04:19:44 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:19:44 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-24 04:19:44 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:19:44 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:19:44 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:19:44 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:19:44 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:19:44 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-24 04:19:44 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:19:44 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:19:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:19:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:19:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:19:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:19:44 INFO imstat:::: Values --- 2026-04-24 04:19:44 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:19:44 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:19:44 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:19:44 INFO imstat:::: -- minimum value [min]: -7.77849e-05 Jy/beam 2026-04-24 04:19:44 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:19:44 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-24 04:19:44 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:19:44 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-04-24 04:19:44 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:19:44 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:19:44 INFO imstat:::: Statistics --- 2026-04-24 04:19:44 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:19:44 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:19:44 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:19:44 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:19:44 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-04-24 04:19:44 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73549e-05 Jy/beam 2026-04-24 04:19:44 INFO imstat:::: -- IQR [quartile]: 3.56016e-05 Jy/beam 2026-04-24 04:19:44 INFO imstat:::: -- First quartile [q1]: -3.45087e-05 Jy/beam 2026-04-24 04:19:44 INFO imstat:::: -- Third quartile [q3]: 1.0929e-06 Jy/beam 2026-04-24 04:19:44 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:19:44 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:19:44 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:19:44 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:19:44 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:19:44 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:19:44 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 2026-04-24 04:19:44 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:19:44.268929 End time: 2026-04-24 04:19:44.294463 2026-04-24 04:19:44 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:19:44 INFO imstat::::casa ########################################## 2026-04-24 04:19:44 INFO phaseshift::::casa ########################################## 2026-04-24 04:19:44 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:19:44 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 +006d21m09.7433' ) 2026-04-24 04:19:44 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:19:44 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:19:44 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:19:44 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:19:44 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:19:44 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:19:44 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:19:44 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:19:44 INFO MSTransformManager::open Select data 2026-04-24 04:19:44 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:19:48 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:19:48 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 +006d21m09.7433' successfully parsed 2026-04-24 04:19:48 INFO phaseshift::::casa Shift phase center 2026-04-24 04:19:49 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:19:49 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:19:44.311178 End time: 2026-04-24 04:19:49.156201 2026-04-24 04:19:49 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:19:49 INFO phaseshift::::casa ########################################## 2026-04-24 04:19:49 INFO tclean::::casa ########################################## 2026-04-24 04:19:49 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:19:49 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 ) 2026-04-24 04:19:49 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:19:49 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:19:49 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:19:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:19:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:19:49 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:19:49 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:19:49 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:19:49 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:19:49 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:19:49 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:19:49 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:19:51 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:19:51 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029838 2026-04-24 04:19:51 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:19:51 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:19:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:19:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:19:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:19:53 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:19:53 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:19:53 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:19:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:19:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:19:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:19:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:19:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:19:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:19:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:19:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:19:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:19:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:19:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:19:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:19:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:19:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:19:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:19:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:19:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:19:56 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:19:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:19:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:19:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:19:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:19:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:19:58 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:19:58 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:19:58 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:19:58 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:19:59 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:20:00 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:19:49.213436 End time: 2026-04-24 04:20:00.075042 2026-04-24 04:20:00 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:20:00 INFO tclean::::casa ########################################## 2026-04-24 04:20:00 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:20:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:20:00 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) 2026-04-24 04:20:00 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:20:00 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:20:00 2026****** 2026-04-24 04:20:00 INFO ImageFitter::fit+ 2026-04-24 04:20:00 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:20:00 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:20:00 INFO ImageFitter::fit+ --- region: 2026-04-24 04:20:00 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:20:00 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:20:00 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:20:00 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:20:00 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:20:00 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:20:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:20:00 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) 2026-04-24 04:20:00 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:20:00 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:20:00 INFO imstat::::casa ########################################## 2026-04-24 04:20:00 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:20:00 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 ) 2026-04-24 04:20:00 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:20:00 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:20:00 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:20:00 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:20:00 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:20:00 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) 2026-04-24 04:20:00 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:20:00 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:20:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:20:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:20:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:20:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:20:00 INFO imstat:::: Values --- 2026-04-24 04:20:00 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:20:00 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:20:00 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:20:00 INFO imstat:::: -- minimum value [min]: -7.77795e-05 Jy/beam 2026-04-24 04:20:00 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:20:00 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:20:00 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:20:00 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:20:00 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:20:00 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:20:00 INFO imstat:::: Statistics --- 2026-04-24 04:20:00 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:20:00 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:20:00 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:20:00 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:20:00 INFO imstat:::: -- Median of the pixel values [median]: -1.86702e-05 Jy/beam 2026-04-24 04:20:00 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73612e-05 Jy/beam 2026-04-24 04:20:00 INFO imstat:::: -- IQR [quartile]: 3.56029e-05 Jy/beam 2026-04-24 04:20:00 INFO imstat:::: -- First quartile [q1]: -3.45082e-05 Jy/beam 2026-04-24 04:20:00 INFO imstat:::: -- Third quartile [q3]: 1.09472e-06 Jy/beam 2026-04-24 04:20:00 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:20:00 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:20:00 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:20:00 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:20:00 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:20:00 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:20:00 INFO imstat::ImageStatsCalculator::statistics 6.553600e+04 6.085646e+02 9.285959e-03 1.524530e-01 1.521711e-01 -7.777946e-05 4.999996e+00 2026-04-24 04:20:00 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:20:00.155172 End time: 2026-04-24 04:20:00.182543 2026-04-24 04:20:00 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:20:00 INFO imstat::::casa ########################################## 2026-04-24 04:20:00 INFO phaseshift::::casa ########################################## 2026-04-24 04:20:00 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:20:00 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 00:25:24.6496' ) 2026-04-24 04:20:00 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:20:00 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:20:00 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:20:00 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:20:00 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:20:00 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:20:00 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:20:00 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:20:00 INFO MSTransformManager::open Select data 2026-04-24 04:20:00 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:20:03 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 ".". 2026-04-24 04:20:03 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 00:25:24.6496' successfully parsed 2026-04-24 04:20:03 INFO phaseshift::::casa Shift phase center 2026-04-24 04:20:04 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:20:04 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:20:00.200243 End time: 2026-04-24 04:20:03.831216 2026-04-24 04:20:04 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:20:04 INFO phaseshift::::casa ########################################## 2026-04-24 04:20:04 INFO tclean::::casa ########################################## 2026-04-24 04:20:04 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:20:04 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 ) 2026-04-24 04:20:04 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:20:04 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:20:04 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:20:04 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:20:04 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:20:04 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:20:04 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:20:04 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:20:04 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:20:04 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:20:04 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:20:04 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:20:05 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:20:05 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029084 2026-04-24 04:20:05 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:20:05 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:20:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:20:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:20:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:20:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:20:07 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:20:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:20:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:20:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:20:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:20:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:20:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:20:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:20:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:20:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:20:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:20:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:20:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:20:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:20:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:20:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:20:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:20:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:20:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:20:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:20:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:20:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:20:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:20:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:20:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:20:12 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:20:12 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:20:12 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:20:13 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:20:13 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:20:14 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:20:03.891579 End time: 2026-04-24 04:20:14.405104 2026-04-24 04:20:14 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:20:14 INFO tclean::::casa ########################################## 2026-04-24 04:20:14 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:20:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:20:14 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) 2026-04-24 04:20:14 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:20:14 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:20:14 2026****** 2026-04-24 04:20:14 INFO ImageFitter::fit+ 2026-04-24 04:20:14 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:20:14 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:20:14 INFO ImageFitter::fit+ --- region: 2026-04-24 04:20:14 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:20:14 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:20:14 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:20:14 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:20:14 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:20:14 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:20:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:20:14 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) 2026-04-24 04:20:14 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116907 Jy 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:20:14 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:20:14 INFO imstat::::casa ########################################## 2026-04-24 04:20:14 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:20:14 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 ) 2026-04-24 04:20:14 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:20:14 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:20:14 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:20:14 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:20:14 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:20:14 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) 2026-04-24 04:20:14 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:20:14 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:20:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:20:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:20:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-04-24 04:20:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-04-24 04:20:15 INFO imstat:::: Values --- 2026-04-24 04:20:15 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:20:15 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:20:15 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:20:15 INFO imstat:::: -- minimum value [min]: -7.78732e-05 Jy/beam 2026-04-24 04:20:15 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:20:15 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:20:15 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:20:15 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:20:15 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:20:15 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:20:15 INFO imstat:::: Statistics --- 2026-04-24 04:20:15 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:20:15 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:20:15 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:20:15 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:20:15 INFO imstat:::: -- Median of the pixel values [median]: -1.86516e-05 Jy/beam 2026-04-24 04:20:15 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73802e-05 Jy/beam 2026-04-24 04:20:15 INFO imstat:::: -- IQR [quartile]: 3.56959e-05 Jy/beam 2026-04-24 04:20:15 INFO imstat:::: -- First quartile [q1]: -3.45348e-05 Jy/beam 2026-04-24 04:20:15 INFO imstat:::: -- Third quartile [q3]: 1.16101e-06 Jy/beam 2026-04-24 04:20:15 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:20:15 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:20:15 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:20:15 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:20:15 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:20:15 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:20:15 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 2026-04-24 04:20:15 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:20:14.478888 End time: 2026-04-24 04:20:14.506837 2026-04-24 04:20:15 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:20:15 INFO imstat::::casa ########################################## 2026-04-24 04:20:15 INFO phaseshift::::casa ########################################## 2026-04-24 04:20:15 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:20:15 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 05:00:21.5326 6.352706472deg' ) 2026-04-24 04:20:15 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:20:15 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:20:15 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:20:15 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:20:15 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:20:15 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:20:15 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:20:15 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:20:15 INFO MSTransformManager::open Select data 2026-04-24 04:20:15 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:20:18 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:20:18 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 6.352706472deg' successfully parsed 2026-04-24 04:20:18 INFO phaseshift::::casa Shift phase center 2026-04-24 04:20:18 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:20:18 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:20:14.523615 End time: 2026-04-24 04:20:18.180540 2026-04-24 04:20:18 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:20:18 INFO phaseshift::::casa ########################################## 2026-04-24 04:20:18 INFO tclean::::casa ########################################## 2026-04-24 04:20:18 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:20:18 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 ) 2026-04-24 04:20:18 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:20:18 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:20:18 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:20:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:20:18 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:20:18 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:20:18 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:20:18 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:20:18 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:20:18 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:20:18 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:20:18 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:20:19 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:20:20 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029447 2026-04-24 04:20:20 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:20:20 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:20:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:20:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:20:22 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:20:22 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:20:22 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:20:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:20:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:20:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:20:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:20:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:20:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:20:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:20:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:20:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:20:24 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:20:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:20:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:20:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:20:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:20:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:20:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:20:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:20:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:20:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:20:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:20:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:20:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:20:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:20:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:20:28 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:20:28 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:20:28 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:20:29 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:20:29 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:20:30 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:20:18.238833 End time: 2026-04-24 04:20:30.288896 2026-04-24 04:20:30 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:20:30 INFO tclean::::casa ########################################## 2026-04-24 04:20:30 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:20:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:20:30 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) 2026-04-24 04:20:30 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:20:30 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:20:30 2026****** 2026-04-24 04:20:30 INFO ImageFitter::fit+ 2026-04-24 04:20:30 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:20:30 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:20:30 INFO ImageFitter::fit+ --- region: 2026-04-24 04:20:30 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:20:30 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:20:30 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:20:30 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:20:30 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:20:30 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:20:30 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:20:30 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) 2026-04-24 04:20:30 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126486 Jy 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:20:30 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:20:30 INFO imstat::::casa ########################################## 2026-04-24 04:20:30 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:20:30 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 ) 2026-04-24 04:20:30 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:20:30 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:20:30 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:20:30 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:20:30 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:20:30 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) 2026-04-24 04:20:30 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:20:30 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:20:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:20:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:20:30 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:20:30 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:20:30 INFO imstat:::: Values --- 2026-04-24 04:20:30 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:20:30 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:20:30 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:20:30 INFO imstat:::: -- minimum value [min]: -7.7777e-05 Jy/beam 2026-04-24 04:20:30 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:20:30 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:20:30 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:20:30 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:20:30 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:20:30 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:20:30 INFO imstat:::: Statistics --- 2026-04-24 04:20:30 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:20:30 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:20:30 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:20:30 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:20:30 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-04-24 04:20:30 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.7361e-05 Jy/beam 2026-04-24 04:20:30 INFO imstat:::: -- IQR [quartile]: 3.56027e-05 Jy/beam 2026-04-24 04:20:30 INFO imstat:::: -- First quartile [q1]: -3.45074e-05 Jy/beam 2026-04-24 04:20:30 INFO imstat:::: -- Third quartile [q3]: 1.09529e-06 Jy/beam 2026-04-24 04:20:30 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:20:30 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:20:30 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:20:30 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:20:30 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:20:30 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:20:30 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 2026-04-24 04:20:30 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:20:30.372884 End time: 2026-04-24 04:20:30.400690 2026-04-24 04:20:30 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:20:30 INFO imstat::::casa ########################################## 2026-04-24 04:20:30 INFO phaseshift::::casa ########################################## 2026-04-24 04:20:30 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:20:30 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' ) 2026-04-24 04:20:30 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:20:30 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:20:30 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:20:30 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:20:30 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:20:30 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:20:30 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:20:30 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:20:30 INFO MSTransformManager::open Select data 2026-04-24 04:20:30 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:20:33 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:20:33 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 05:00:21.5326 0.110875644rad' successfully parsed 2026-04-24 04:20:33 INFO phaseshift::::casa Shift phase center 2026-04-24 04:20:33 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:20:33 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:20:30.417858 End time: 2026-04-24 04:20:33.379562 2026-04-24 04:20:33 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:20:33 INFO phaseshift::::casa ########################################## 2026-04-24 04:20:33 INFO tclean::::casa ########################################## 2026-04-24 04:20:33 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:20:33 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, 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 ) 2026-04-24 04:20:33 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:20:33 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:20:33 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:20:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:20:34 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:20:34 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:20:34 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:20:34 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:20:34 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:20:34 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:20:34 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:20:34 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:20:35 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:20:35 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.032348 2026-04-24 04:20:35 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:20:35 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:20:36 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:20:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:20:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:20:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:20:36 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:20:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:20:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:20:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:20:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:20:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:20:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:20:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:20:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:20:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:20:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:20:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:20:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:20:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:20:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:20:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:20:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:20:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:20:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:20:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:20:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:20:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:20:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:20:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:20:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:20:42 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:20:42 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:20:42 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:20:42 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:20:43 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:20:44 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:20:33.422948 End time: 2026-04-24 04:20:44.268226 2026-04-24 04:20:44 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:20:44 INFO tclean::::casa ########################################## 2026-04-24 04:20:44 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:20:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:20:44 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-24 04:20:44 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:20:44 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:20:44 2026****** 2026-04-24 04:20:44 INFO ImageFitter::fit+ 2026-04-24 04:20:44 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:20:44 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:20:44 INFO ImageFitter::fit+ --- region: 2026-04-24 04:20:44 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:20:44 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:20:44 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:20:44 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:20:44 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:20:44 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:20:44 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:20:44 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-24 04:20:44 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:20:44 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:20:44 INFO imstat::::casa ########################################## 2026-04-24 04:20:44 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:20:44 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-24 04:20:44 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:20:44 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:20:44 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:20:44 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:20:44 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:20:44 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-24 04:20:44 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:20:44 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:20:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:20:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:20:44 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:20:44 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:20:44 INFO imstat:::: Values --- 2026-04-24 04:20:44 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:20:44 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:20:44 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:20:44 INFO imstat:::: -- minimum value [min]: -7.77849e-05 Jy/beam 2026-04-24 04:20:44 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:20:44 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-24 04:20:44 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:20:44 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-04-24 04:20:44 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:20:44 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:20:44 INFO imstat:::: Statistics --- 2026-04-24 04:20:44 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:20:44 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:20:44 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:20:44 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:20:44 INFO imstat:::: -- Median of the pixel values [median]: -1.86722e-05 Jy/beam 2026-04-24 04:20:44 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73549e-05 Jy/beam 2026-04-24 04:20:44 INFO imstat:::: -- IQR [quartile]: 3.56016e-05 Jy/beam 2026-04-24 04:20:44 INFO imstat:::: -- First quartile [q1]: -3.45087e-05 Jy/beam 2026-04-24 04:20:44 INFO imstat:::: -- Third quartile [q3]: 1.0929e-06 Jy/beam 2026-04-24 04:20:44 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:20:44 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:20:44 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:20:44 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:20:44 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:20:44 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:20:44 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 2026-04-24 04:20:44 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:20:44.355046 End time: 2026-04-24 04:20:44.403785 2026-04-24 04:20:44 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:20:44 INFO imstat::::casa ########################################## 2026-04-24 04:20:44 INFO phaseshift::::casa ########################################## 2026-04-24 04:20:44 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:20:44 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg +006d21m09.7433' ) 2026-04-24 04:20:44 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:20:44 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:20:44 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:20:44 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:20:44 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:20:44 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:20:44 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:20:44 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:20:44 INFO MSTransformManager::open Select data 2026-04-24 04:20:44 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:20:47 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:20:47 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg +006d21m09.7433' successfully parsed 2026-04-24 04:20:47 INFO phaseshift::::casa Shift phase center 2026-04-24 04:20:48 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:20:48 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:20:44.430601 End time: 2026-04-24 04:20:48.114140 2026-04-24 04:20:48 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:20:48 INFO phaseshift::::casa ########################################## 2026-04-24 04:20:48 INFO tclean::::casa ########################################## 2026-04-24 04:20:48 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:20:48 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, 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 ) 2026-04-24 04:20:48 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:20:48 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:20:48 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:20:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:20:48 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:20:48 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:20:48 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:20:48 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:20:48 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:20:48 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:20:48 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:20:48 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:20:49 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:20:49 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027613 2026-04-24 04:20:49 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:20:49 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:20:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:20:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:20:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:20:51 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:20:51 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:20:51 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:20:51 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:20:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:20:52 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:20:52 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:20:52 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:20:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:20:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:20:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:20:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:20:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:20:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:20:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:20:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:20:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:20:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:20:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:20:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:20:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:20:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:20:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:20:55 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:20:55 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:20:56 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:20:56 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:20:56 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:20:56 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:20:57 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:20:57 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:20:58 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:20:48.158142 End time: 2026-04-24 04:20:58.220493 2026-04-24 04:20:58 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:20:58 INFO tclean::::casa ########################################## 2026-04-24 04:20:58 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:20:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:20:58 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) 2026-04-24 04:20:58 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:20:58 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:20:58 2026****** 2026-04-24 04:20:58 INFO ImageFitter::fit+ 2026-04-24 04:20:58 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:20:58 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:20:58 INFO ImageFitter::fit+ --- region: 2026-04-24 04:20:58 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:20:58 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:20:58 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:20:58 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:20:58 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:20:58 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:20:58 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:20:58 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) 2026-04-24 04:20:58 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116867 Jy 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126483 Jy 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ --- dec: 127.999996 +/- 0.000097 pixels 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:20:58 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:20:58 INFO imstat::::casa ########################################## 2026-04-24 04:20:58 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:20:58 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 ) 2026-04-24 04:20:58 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:20:58 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:20:58 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:20:58 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:20:58 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:20:58 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) 2026-04-24 04:20:58 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:20:58 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:20:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:20:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:20:58 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:20:58 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:20:58 INFO imstat:::: Values --- 2026-04-24 04:20:58 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:20:58 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:20:58 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:20:58 INFO imstat:::: -- minimum value [min]: -7.77768e-05 Jy/beam 2026-04-24 04:20:58 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:20:58 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:20:58 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:20:58 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:20:58 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:20:58 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:20:58 INFO imstat:::: Statistics --- 2026-04-24 04:20:58 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:20:58 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:20:58 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:20:58 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:20:58 INFO imstat:::: -- Median of the pixel values [median]: -1.86705e-05 Jy/beam 2026-04-24 04:20:58 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73609e-05 Jy/beam 2026-04-24 04:20:58 INFO imstat:::: -- IQR [quartile]: 3.56013e-05 Jy/beam 2026-04-24 04:20:58 INFO imstat:::: -- First quartile [q1]: -3.4507e-05 Jy/beam 2026-04-24 04:20:58 INFO imstat:::: -- Third quartile [q3]: 1.09435e-06 Jy/beam 2026-04-24 04:20:58 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:20:58 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:20:58 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:20:58 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:20:58 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:20:58 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:20:58 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 2026-04-24 04:20:58 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:20:58.302645 End time: 2026-04-24 04:20:58.330477 2026-04-24 04:20:58 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:20:58 INFO imstat::::casa ########################################## 2026-04-24 04:20:58 INFO phaseshift::::casa ########################################## 2026-04-24 04:20:58 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:20:58 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 75.089719167deg 00:25:24.6496' ) 2026-04-24 04:20:58 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:20:58 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:20:58 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:20:58 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:20:58 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:20:58 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:20:58 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:20:58 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:20:58 INFO MSTransformManager::open Select data 2026-04-24 04:20:58 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:21:01 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 ".". 2026-04-24 04:21:01 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 00:25:24.6496' successfully parsed 2026-04-24 04:21:01 INFO phaseshift::::casa Shift phase center 2026-04-24 04:21:02 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:21:02 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:20:58.347664 End time: 2026-04-24 04:21:02.090261 2026-04-24 04:21:02 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:21:02 INFO phaseshift::::casa ########################################## 2026-04-24 04:21:02 INFO tclean::::casa ########################################## 2026-04-24 04:21:02 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:21:02 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 ) 2026-04-24 04:21:02 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:21:02 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:21:02 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:21:02 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:21:02 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:21:02 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:21:02 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:21:02 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:21:02 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:21:02 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:21:02 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:21:02 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:21:04 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:21:04 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.015287 2026-04-24 04:21:04 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:21:04 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:21:04 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:21:05 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:21:05 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:21:06 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:21:06 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:21:06 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:21:06 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:21:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:21:07 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:21:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:21:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:21:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:21:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:21:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:21:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:21:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:21:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:21:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:21:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:21:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:21:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:21:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:21:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:21:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:21:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:21:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:21:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:21:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:21:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:21:15 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:21:15 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:21:15 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:21:17 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:21:17 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:21:18 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:21:02.150501 End time: 2026-04-24 04:21:18.366907 2026-04-24 04:21:18 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:21:18 INFO tclean::::casa ########################################## 2026-04-24 04:21:18 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:21:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:21:18 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) 2026-04-24 04:21:18 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:21:18 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:21:18 2026****** 2026-04-24 04:21:18 INFO ImageFitter::fit+ 2026-04-24 04:21:18 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:21:18 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:21:18 INFO ImageFitter::fit+ --- region: 2026-04-24 04:21:18 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:21:18 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:21:18 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:21:18 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:21:18 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:21:18 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:21:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:21:18 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) 2026-04-24 04:21:18 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116903 Jy 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126517 Jy 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000038 +/- 0.000777 arcsec 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ --- ra: 127.999939 +/- 0.000127 pixels 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ --- dec: 127.999957 +/- 0.000097 pixels 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:21:18 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:21:18 INFO imstat::::casa ########################################## 2026-04-24 04:21:18 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:21:18 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 ) 2026-04-24 04:21:18 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:21:18 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:21:18 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:21:18 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:21:18 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:21:18 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) 2026-04-24 04:21:18 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:21:18 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:21:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:21:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:21:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-04-24 04:21:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-04-24 04:21:18 INFO imstat:::: Values --- 2026-04-24 04:21:18 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:21:18 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:21:18 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:21:18 INFO imstat:::: -- minimum value [min]: -7.78731e-05 Jy/beam 2026-04-24 04:21:18 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:21:18 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:21:18 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:21:18 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:21:18 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:21:18 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:21:18 INFO imstat:::: Statistics --- 2026-04-24 04:21:18 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:21:18 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:21:18 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:21:18 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:21:18 INFO imstat:::: -- Median of the pixel values [median]: -1.86503e-05 Jy/beam 2026-04-24 04:21:18 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73798e-05 Jy/beam 2026-04-24 04:21:18 INFO imstat:::: -- IQR [quartile]: 3.56966e-05 Jy/beam 2026-04-24 04:21:18 INFO imstat:::: -- First quartile [q1]: -3.45352e-05 Jy/beam 2026-04-24 04:21:18 INFO imstat:::: -- Third quartile [q3]: 1.16146e-06 Jy/beam 2026-04-24 04:21:18 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:21:18 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:21:18 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:21:18 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:21:18 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:21:18 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:21:18 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 2026-04-24 04:21:18 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:21:18.435259 End time: 2026-04-24 04:21:18.460931 2026-04-24 04:21:18 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:21:18 INFO imstat::::casa ########################################## 2026-04-24 04:21:18 INFO phaseshift::::casa ########################################## 2026-04-24 04:21:18 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:21:18 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' ) 2026-04-24 04:21:18 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:21:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:21:18 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:21:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:21:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:21:19 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:21:19 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:21:19 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:21:19 INFO MSTransformManager::open Select data 2026-04-24 04:21:19 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:21:21 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:21:21 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 6.352706472deg' successfully parsed 2026-04-24 04:21:21 INFO phaseshift::::casa Shift phase center 2026-04-24 04:21:22 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:21:22 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:21:18.477170 End time: 2026-04-24 04:21:22.057994 2026-04-24 04:21:22 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:21:22 INFO phaseshift::::casa ########################################## 2026-04-24 04:21:22 INFO tclean::::casa ########################################## 2026-04-24 04:21:22 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:21:22 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 ) 2026-04-24 04:21:22 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:21:22 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:21:22 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:21:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:21:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:21:22 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:21:22 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:21:22 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:21:22 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:21:22 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:21:22 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:21:22 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:21:23 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:21:23 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025246 2026-04-24 04:21:23 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:21:23 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:21:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:21:25 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:21:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:21:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:21:25 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:21:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:21:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:21:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:21:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:21:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:21:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:21:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:21:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:21:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:21:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:21:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:21:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:21:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:21:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:21:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:21:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:21:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:21:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:21:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:21:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:21:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:21:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:21:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:21:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:21:30 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:21:30 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:21:30 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:21:31 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:21:31 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:21:32 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:21:22.112509 End time: 2026-04-24 04:21:32.177996 2026-04-24 04:21:32 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:21:32 INFO tclean::::casa ########################################## 2026-04-24 04:21:32 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:21:32 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:21:32 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) 2026-04-24 04:21:32 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:21:32 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:21:32 2026****** 2026-04-24 04:21:32 INFO ImageFitter::fit+ 2026-04-24 04:21:32 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:21:32 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:21:32 INFO ImageFitter::fit+ --- region: 2026-04-24 04:21:32 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:21:32 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:21:32 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:21:32 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:21:32 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:21:32 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:21:32 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:21:32 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) 2026-04-24 04:21:32 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011687 Jy 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ --- ra: 128.000005 +/- 0.000127 pixels 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ --- dec: 127.999996 +/- 0.000097 pixels 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:21:32 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:21:32 INFO imstat::::casa ########################################## 2026-04-24 04:21:32 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:21:32 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 ) 2026-04-24 04:21:32 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:21:32 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:21:32 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:21:32 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:21:32 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:21:32 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) 2026-04-24 04:21:32 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:21:32 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:21:32 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:21:32 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:21:32 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:21:32 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:21:32 INFO imstat:::: Values --- 2026-04-24 04:21:32 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:21:32 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:21:32 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:21:32 INFO imstat:::: -- minimum value [min]: -7.77771e-05 Jy/beam 2026-04-24 04:21:32 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:21:32 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:21:32 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:21:32 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:21:32 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:21:32 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:21:32 INFO imstat:::: Statistics --- 2026-04-24 04:21:32 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:21:32 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:21:32 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:21:32 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:21:32 INFO imstat:::: -- Median of the pixel values [median]: -1.86715e-05 Jy/beam 2026-04-24 04:21:32 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73619e-05 Jy/beam 2026-04-24 04:21:32 INFO imstat:::: -- IQR [quartile]: 3.56021e-05 Jy/beam 2026-04-24 04:21:32 INFO imstat:::: -- First quartile [q1]: -3.45061e-05 Jy/beam 2026-04-24 04:21:32 INFO imstat:::: -- Third quartile [q3]: 1.09605e-06 Jy/beam 2026-04-24 04:21:32 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:21:32 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:21:32 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:21:32 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:21:32 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:21:32 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:21:32 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 2026-04-24 04:21:32 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:21:32.256733 End time: 2026-04-24 04:21:32.298579 2026-04-24 04:21:32 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:21:32 INFO imstat::::casa ########################################## 2026-04-24 04:21:32 INFO phaseshift::::casa ########################################## 2026-04-24 04:21:32 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:21:32 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 75.089719167deg 0.110875644rad' ) 2026-04-24 04:21:32 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:21:32 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:21:32 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:21:32 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:21:32 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:21:32 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:21:32 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:21:32 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:21:32 INFO MSTransformManager::open Select data 2026-04-24 04:21:32 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:21:35 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:21:35 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 75.089719167deg 0.110875644rad' successfully parsed 2026-04-24 04:21:35 INFO phaseshift::::casa Shift phase center 2026-04-24 04:21:36 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:21:36 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:21:32.314691 End time: 2026-04-24 04:21:36.031711 2026-04-24 04:21:36 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:21:36 INFO phaseshift::::casa ########################################## 2026-04-24 04:21:36 INFO tclean::::casa ########################################## 2026-04-24 04:21:36 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:21:36 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 ) 2026-04-24 04:21:36 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:21:36 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:21:36 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:21:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:21:36 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:21:36 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:21:36 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:21:36 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:21:36 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:21:36 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:21:36 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:21:36 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:21:38 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:21:38 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.025247 2026-04-24 04:21:38 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:21:38 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:21:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:21:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:21:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:21:41 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:21:41 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:21:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:21:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:21:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:21:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:21:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:21:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:21:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:21:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:21:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:21:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:21:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:21:45 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:21:45 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:21:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:21:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:21:46 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:21:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:21:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:21:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:21:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:21:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:21:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:21:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:21:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:21:48 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:21:48 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:21:48 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:21:49 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:21:49 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:21:50 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:21:36.091576 End time: 2026-04-24 04:21:50.087475 2026-04-24 04:21:50 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:21:50 INFO tclean::::casa ########################################## 2026-04-24 04:21:50 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:21:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:21:50 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-24 04:21:50 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:21:50 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:21:50 2026****** 2026-04-24 04:21:50 INFO ImageFitter::fit+ 2026-04-24 04:21:50 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:21:50 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:21:50 INFO ImageFitter::fit+ --- region: 2026-04-24 04:21:50 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:21:50 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:21:50 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:21:50 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:21:50 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:21:50 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:21:50 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:21:50 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) 2026-04-24 04:21:50 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126482 Jy 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000000 +/- 0.000777 arcsec 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ --- ra: 128.000012 +/- 0.000127 pixels 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ --- dec: 128.000001 +/- 0.000097 pixels 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:21:50 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:21:50 INFO imstat::::casa ########################################## 2026-04-24 04:21:50 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:21:50 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-24 04:21:50 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:21:50 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:21:50 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:21:50 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:21:50 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:21:50 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-24 04:21:50 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:21:50 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:21:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:21:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:21:50 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:21:50 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:21:50 INFO imstat:::: Values --- 2026-04-24 04:21:50 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:21:50 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:21:50 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:21:50 INFO imstat:::: -- minimum value [min]: -7.77855e-05 Jy/beam 2026-04-24 04:21:50 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:21:50 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-24 04:21:50 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:21:50 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-04-24 04:21:50 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:21:50 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:21:50 INFO imstat:::: Statistics --- 2026-04-24 04:21:50 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:21:50 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:21:50 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:21:50 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:21:50 INFO imstat:::: -- Median of the pixel values [median]: -1.86732e-05 Jy/beam 2026-04-24 04:21:50 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73562e-05 Jy/beam 2026-04-24 04:21:50 INFO imstat:::: -- IQR [quartile]: 3.56008e-05 Jy/beam 2026-04-24 04:21:50 INFO imstat:::: -- First quartile [q1]: -3.45107e-05 Jy/beam 2026-04-24 04:21:50 INFO imstat:::: -- Third quartile [q3]: 1.09015e-06 Jy/beam 2026-04-24 04:21:50 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:21:50 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:21:50 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:21:50 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:21:50 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:21:50 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:21:50 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 2026-04-24 04:21:50 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:21:50.168277 End time: 2026-04-24 04:21:50.195820 2026-04-24 04:21:50 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:21:50 INFO imstat::::casa ########################################## 2026-04-24 04:21:50 INFO phaseshift::::casa ########################################## 2026-04-24 04:21:50 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:21:50 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad +006d21m09.7433' ) 2026-04-24 04:21:50 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:21:50 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:21:50 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:21:50 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:21:50 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:21:50 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:21:50 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:21:50 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:21:50 INFO MSTransformManager::open Select data 2026-04-24 04:21:50 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:21:53 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:21:53 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad +006d21m09.7433' successfully parsed 2026-04-24 04:21:53 INFO phaseshift::::casa Shift phase center 2026-04-24 04:21:54 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:21:54 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:21:50.212742 End time: 2026-04-24 04:21:54.006842 2026-04-24 04:21:54 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:21:54 INFO phaseshift::::casa ########################################## 2026-04-24 04:21:54 INFO tclean::::casa ########################################## 2026-04-24 04:21:54 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:21:54 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 ) 2026-04-24 04:21:54 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:21:54 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:21:54 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:21:54 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:21:54 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:21:54 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:21:54 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:21:54 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:21:54 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:21:54 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:21:54 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:21:54 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:21:56 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:21:56 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029331 2026-04-24 04:21:56 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:21:56 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:21:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:21:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:21:57 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:21:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:21:58 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:21:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:21:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:21:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:21:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:21:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:21:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:21:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:21:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:22:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:22:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:22:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:22:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:22:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:22:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:22:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:22:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:22:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:22:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:22:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:22:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:22:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:22:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:22:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:22:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:22:03 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:22:03 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:22:03 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:22:03 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:22:04 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:22:05 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:21:54.066972 End time: 2026-04-24 04:22:04.705775 2026-04-24 04:22:05 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:22:05 INFO tclean::::casa ########################################## 2026-04-24 04:22:05 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:22:05 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:22:05 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) 2026-04-24 04:22:05 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:22:05 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:22:05 2026****** 2026-04-24 04:22:05 INFO ImageFitter::fit+ 2026-04-24 04:22:05 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:22:05 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:22:05 INFO ImageFitter::fit+ --- region: 2026-04-24 04:22:05 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:22:05 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:22:05 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:22:05 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:22:05 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:22:05 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:22:05 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:22:05 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) 2026-04-24 04:22:05 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116872 Jy 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000006 +/- 0.000777 arcsec 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ --- ra: 128.000007 +/- 0.000127 pixels 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ --- dec: 127.999994 +/- 0.000097 pixels 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:22:05 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:22:05 INFO imstat::::casa ########################################## 2026-04-24 04:22:05 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:22:05 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 ) 2026-04-24 04:22:05 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:22:05 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:22:05 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:22:05 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:22:05 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:22:05 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) 2026-04-24 04:22:05 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:22:05 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:22:05 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:22:05 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:22:05 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:22:05 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:22:05 INFO imstat:::: Values --- 2026-04-24 04:22:05 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:22:05 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:22:05 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:22:05 INFO imstat:::: -- minimum value [min]: -7.77801e-05 Jy/beam 2026-04-24 04:22:05 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:22:05 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:22:05 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:22:05 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:22:05 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:22:05 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:22:05 INFO imstat:::: Statistics --- 2026-04-24 04:22:05 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:22:05 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:22:05 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:22:05 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:22:05 INFO imstat:::: -- Median of the pixel values [median]: -1.86669e-05 Jy/beam 2026-04-24 04:22:05 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73635e-05 Jy/beam 2026-04-24 04:22:05 INFO imstat:::: -- IQR [quartile]: 3.56081e-05 Jy/beam 2026-04-24 04:22:05 INFO imstat:::: -- First quartile [q1]: -3.45085e-05 Jy/beam 2026-04-24 04:22:05 INFO imstat:::: -- Third quartile [q3]: 1.09959e-06 Jy/beam 2026-04-24 04:22:05 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:22:05 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:22:05 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:22:05 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:22:05 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:22:05 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:22:05 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 2026-04-24 04:22:05 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:22:04.785869 End time: 2026-04-24 04:22:04.813944 2026-04-24 04:22:05 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:22:05 INFO imstat::::casa ########################################## 2026-04-24 04:22:05 INFO phaseshift::::casa ########################################## 2026-04-24 04:22:05 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:22:05 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' ) 2026-04-24 04:22:05 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:22:05 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:22:05 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:22:05 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:22:05 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:22:05 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:22:05 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:22:05 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:22:05 INFO MSTransformManager::open Select data 2026-04-24 04:22:05 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:22:07 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 ".". 2026-04-24 04:22:07 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 00:25:24.6496' successfully parsed 2026-04-24 04:22:07 INFO phaseshift::::casa Shift phase center 2026-04-24 04:22:08 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:22:08 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:22:04.831347 End time: 2026-04-24 04:22:08.378691 2026-04-24 04:22:08 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:22:08 INFO phaseshift::::casa ########################################## 2026-04-24 04:22:08 INFO tclean::::casa ########################################## 2026-04-24 04:22:08 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:22:08 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 ) 2026-04-24 04:22:08 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:22:08 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:22:08 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:22:09 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:22:09 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:22:09 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:22:09 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:22:09 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:22:09 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:22:09 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:22:09 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:22:09 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:22:11 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:22:11 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.030396 2026-04-24 04:22:11 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:22:11 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:22:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:22:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:22:14 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:22:14 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:22:14 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:22:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:22:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:22:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:22:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:22:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:22:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:22:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:22:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:22:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:22:16 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:22:16 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:22:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:22:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:22:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:22:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:22:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:22:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:22:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:22:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:22:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:22:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:22:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:22:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:22:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:22:20 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:22:20 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:22:20 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:22:21 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:22:21 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:22:22 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:22:08.438857 End time: 2026-04-24 04:22:21.939364 2026-04-24 04:22:22 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:22:22 INFO tclean::::casa ########################################## 2026-04-24 04:22:22 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:22:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:22:22 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) 2026-04-24 04:22:22 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:22:22 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:22:22 2026****** 2026-04-24 04:22:22 INFO ImageFitter::fit+ 2026-04-24 04:22:22 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:22:22 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:22:22 INFO ImageFitter::fit+ --- region: 2026-04-24 04:22:22 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:22:22 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:22:22 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:22:22 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:22:22 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:22:22 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:22:22 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:22:22 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) 2026-04-24 04:22:22 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116905 Jy 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.00012652 Jy 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999994 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000041 +/- 0.000777 arcsec 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ --- ra: 127.999941 +/- 0.000127 pixels 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ --- dec: 127.999954 +/- 0.000097 pixels 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:22:22 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:22:22 INFO imstat::::casa ########################################## 2026-04-24 04:22:22 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:22:22 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 ) 2026-04-24 04:22:22 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:22:22 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:22:22 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:22:22 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:22:22 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:22:22 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) 2026-04-24 04:22:22 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:22:22 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:22:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:22:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:22:22 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-04-24 04:22:22 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-04-24 04:22:22 INFO imstat:::: Values --- 2026-04-24 04:22:22 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:22:22 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:22:22 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:22:22 INFO imstat:::: -- minimum value [min]: -7.78774e-05 Jy/beam 2026-04-24 04:22:22 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:22:22 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:22:22 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:22:22 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:22:22 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:22:22 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:22:22 INFO imstat:::: Statistics --- 2026-04-24 04:22:22 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:22:22 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:22:22 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:22:22 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:22:22 INFO imstat:::: -- Median of the pixel values [median]: -1.86532e-05 Jy/beam 2026-04-24 04:22:22 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73779e-05 Jy/beam 2026-04-24 04:22:22 INFO imstat:::: -- IQR [quartile]: 3.5701e-05 Jy/beam 2026-04-24 04:22:22 INFO imstat:::: -- First quartile [q1]: -3.45356e-05 Jy/beam 2026-04-24 04:22:22 INFO imstat:::: -- Third quartile [q3]: 1.16544e-06 Jy/beam 2026-04-24 04:22:22 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:22:22 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:22:22 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:22:22 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:22:22 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:22:22 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:22:22 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 2026-04-24 04:22:22 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:22:22.024722 End time: 2026-04-24 04:22:22.063702 2026-04-24 04:22:22 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:22:22 INFO imstat::::casa ########################################## 2026-04-24 04:22:22 INFO phaseshift::::casa ########################################## 2026-04-24 04:22:22 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:22:22 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 6.352706472deg' ) 2026-04-24 04:22:22 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:22:22 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:22:22 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:22:22 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:22:22 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:22:22 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:22:22 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:22:22 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:22:22 INFO MSTransformManager::open Select data 2026-04-24 04:22:22 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:22:25 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:22:25 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 6.352706472deg' successfully parsed 2026-04-24 04:22:25 INFO phaseshift::::casa Shift phase center 2026-04-24 04:22:26 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:22:26 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:22:22.080331 End time: 2026-04-24 04:22:26.478950 2026-04-24 04:22:26 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:22:26 INFO phaseshift::::casa ########################################## 2026-04-24 04:22:27 INFO tclean::::casa ########################################## 2026-04-24 04:22:27 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:22:27 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 ) 2026-04-24 04:22:27 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:22:27 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:22:27 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:22:27 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:22:27 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:22:27 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:22:27 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:22:27 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:22:27 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:22:27 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:22:27 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:22:27 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:22:27 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:22:27 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.01003 2026-04-24 04:22:27 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:22:27 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:22:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:22:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:22:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:22:29 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:22:29 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:22:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:22:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:22:30 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:22:30 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:22:30 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:22:31 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:22:31 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:22:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:22:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:22:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:22:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:22:32 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:22:32 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:22:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:22:32 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:22:32 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:22:32 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:22:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:22:33 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:22:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:22:33 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:22:33 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:22:33 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:22:34 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:22:34 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:22:34 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:22:34 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:22:34 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:22:35 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:22:36 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:22:26.529931 End time: 2026-04-24 04:22:35.503449 2026-04-24 04:22:36 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:22:36 INFO tclean::::casa ########################################## 2026-04-24 04:22:36 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:22:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:22:36 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) 2026-04-24 04:22:36 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:22:36 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:22:36 2026****** 2026-04-24 04:22:36 INFO ImageFitter::fit+ 2026-04-24 04:22:36 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:22:36 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:22:36 INFO ImageFitter::fit+ --- region: 2026-04-24 04:22:36 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:22:36 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:22:36 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:22:36 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:22:36 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:22:36 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:22:36 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:22:36 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) 2026-04-24 04:22:36 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116868 Jy 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000006 +/- 0.000777 arcsec 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ --- ra: 128.000007 +/- 0.000127 pixels 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ --- dec: 127.999994 +/- 0.000097 pixels 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:22:36 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:22:36 INFO imstat::::casa ########################################## 2026-04-24 04:22:36 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:22:36 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 ) 2026-04-24 04:22:36 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:22:36 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:22:36 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:22:36 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:22:36 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:22:36 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) 2026-04-24 04:22:36 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:22:36 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:22:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:22:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:22:36 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:22:36 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:22:36 INFO imstat:::: Values --- 2026-04-24 04:22:36 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:22:36 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:22:36 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:22:36 INFO imstat:::: -- minimum value [min]: -7.77798e-05 Jy/beam 2026-04-24 04:22:36 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:22:36 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:22:36 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:22:36 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:22:36 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:22:36 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:22:36 INFO imstat:::: Statistics --- 2026-04-24 04:22:36 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:22:36 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:22:36 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:22:36 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:22:36 INFO imstat:::: -- Median of the pixel values [median]: -1.86675e-05 Jy/beam 2026-04-24 04:22:36 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73645e-05 Jy/beam 2026-04-24 04:22:36 INFO imstat:::: -- IQR [quartile]: 3.56077e-05 Jy/beam 2026-04-24 04:22:36 INFO imstat:::: -- First quartile [q1]: -3.45073e-05 Jy/beam 2026-04-24 04:22:36 INFO imstat:::: -- Third quartile [q3]: 1.1004e-06 Jy/beam 2026-04-24 04:22:36 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:22:36 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:22:36 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:22:36 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:22:36 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:22:36 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:22:36 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 2026-04-24 04:22:36 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:22:35.572453 End time: 2026-04-24 04:22:35.598575 2026-04-24 04:22:36 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:22:36 INFO imstat::::casa ########################################## 2026-04-24 04:22:36 INFO phaseshift::::casa ########################################## 2026-04-24 04:22:36 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:22:36 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='GALACTIC 1.310562834rad 0.110875644rad' ) 2026-04-24 04:22:36 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:22:36 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:22:36 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:22:36 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:22:36 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:22:36 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:22:36 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:22:36 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:22:36 INFO MSTransformManager::open Select data 2026-04-24 04:22:36 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:22:38 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:22:38 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'GALACTIC 1.310562834rad 0.110875644rad' successfully parsed 2026-04-24 04:22:38 INFO phaseshift::::casa Shift phase center 2026-04-24 04:22:39 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:22:39 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:22:35.615253 End time: 2026-04-24 04:22:39.145995 2026-04-24 04:22:39 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:22:39 INFO phaseshift::::casa ########################################## 2026-04-24 04:22:39 INFO tclean::::casa ########################################## 2026-04-24 04:22:39 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:22:39 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 ) 2026-04-24 04:22:39 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:22:39 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:22:39 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:22:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:22:39 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:22:39 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:22:39 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:22:39 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:22:39 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:22:39 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:22:39 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:22:39 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:22:41 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:22:41 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027523 2026-04-24 04:22:41 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:22:41 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:22:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:22:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:22:44 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:22:44 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:22:44 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:22:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:22:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:22:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:22:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:22:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:22:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:22:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:22:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:22:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:22:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:22:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:22:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:22:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:22:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:22:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:22:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:22:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:22:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:22:50 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:22:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:22:50 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:22:50 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:22:50 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:22:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:22:51 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:22:51 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:22:51 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:22:51 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:22:52 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:22:53 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:22:39.200928 End time: 2026-04-24 04:22:52.558041 2026-04-24 04:22:53 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:22:53 INFO tclean::::casa ########################################## 2026-04-24 04:22:53 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:22:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:22:53 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) 2026-04-24 04:22:53 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:22:53 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:22:53 2026****** 2026-04-24 04:22:53 INFO ImageFitter::fit+ 2026-04-24 04:22:53 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:22:53 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:22:53 INFO ImageFitter::fit+ --- region: 2026-04-24 04:22:53 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:22:53 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:22:53 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:22:53 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:22:53 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:22:53 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:22:53 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:22:53 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) 2026-04-24 04:22:53 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126484 Jy 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000002 +/- 0.000777 arcsec 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ --- ra: 128.000014 +/- 0.000127 pixels 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ --- dec: 127.999998 +/- 0.000097 pixels 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:22:53 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:22:53 INFO imstat::::casa ########################################## 2026-04-24 04:22:53 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:22:53 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 ) 2026-04-24 04:22:53 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:22:53 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:22:53 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:22:53 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:22:53 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:22:53 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) 2026-04-24 04:22:53 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:22:53 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:22:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:22:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:22:53 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:22:53 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:22:53 INFO imstat:::: Values --- 2026-04-24 04:22:53 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:22:53 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:22:53 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:22:53 INFO imstat:::: -- minimum value [min]: -7.77816e-05 Jy/beam 2026-04-24 04:22:53 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:22:53 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-24 04:22:53 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:22:53 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-04-24 04:22:53 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:22:53 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:22:53 INFO imstat:::: Statistics --- 2026-04-24 04:22:53 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:22:53 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:22:53 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:22:53 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:22:53 INFO imstat:::: -- Median of the pixel values [median]: -1.8676e-05 Jy/beam 2026-04-24 04:22:53 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73584e-05 Jy/beam 2026-04-24 04:22:53 INFO imstat:::: -- IQR [quartile]: 3.56038e-05 Jy/beam 2026-04-24 04:22:53 INFO imstat:::: -- First quartile [q1]: -3.45104e-05 Jy/beam 2026-04-24 04:22:53 INFO imstat:::: -- Third quartile [q3]: 1.09331e-06 Jy/beam 2026-04-24 04:22:53 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:22:53 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:22:53 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:22:53 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:22:53 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:22:53 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:22:53 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 2026-04-24 04:22:53 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:22:52.635646 End time: 2026-04-24 04:22:52.663680 2026-04-24 04:22:53 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:22:53 INFO imstat::::casa ########################################## 2026-04-24 04:22:53 INFO phaseshift::::casa ########################################## 2026-04-24 04:22:53 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:22:53 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' ) 2026-04-24 04:22:53 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:22:53 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:22:53 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:22:53 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:22:53 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:22:53 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:22:53 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:22:53 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:22:53 INFO MSTransformManager::open Select data 2026-04-24 04:22:53 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:22:55 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:22:55 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 39d58m05.8512' successfully parsed 2026-04-24 04:22:55 INFO phaseshift::::casa Shift phase center 2026-04-24 04:22:56 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:22:56 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:22:52.681430 End time: 2026-04-24 04:22:56.098505 2026-04-24 04:22:56 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:22:56 INFO phaseshift::::casa ########################################## 2026-04-24 04:22:56 INFO tclean::::casa ########################################## 2026-04-24 04:22:56 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:22:56 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, 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 ) 2026-04-24 04:22:56 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:22:56 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:22:56 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:22:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:22:56 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:22:56 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:22:56 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:22:56 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:22:56 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:22:56 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:22:56 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:22:56 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:22:57 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:22:57 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027426 2026-04-24 04:22:57 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:22:57 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:22:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:22:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:22:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:22:59 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:22:59 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:22:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:22:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:23:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:23:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:23:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:23:02 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:23:02 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:23:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:23:02 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:23:02 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:23:02 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:23:03 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:23:03 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:23:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:23:03 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:23:03 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:23:03 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:23:04 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:23:04 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:23:04 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:23:05 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:23:05 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:23:05 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:23:06 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:23:06 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:23:06 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:23:06 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:23:06 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:23:06 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:23:07 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:22:56.155741 End time: 2026-04-24 04:23:07.112921 2026-04-24 04:23:07 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:23:07 INFO tclean::::casa ########################################## 2026-04-24 04:23:07 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:23:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:23:07 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) 2026-04-24 04:23:07 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:23:07 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:23:07 2026****** 2026-04-24 04:23:07 INFO ImageFitter::fit+ 2026-04-24 04:23:07 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:23:07 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:23:07 INFO ImageFitter::fit+ --- region: 2026-04-24 04:23:07 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:23:07 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:23:07 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:23:07 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:23:07 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:23:07 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:23:07 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:23:07 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) 2026-04-24 04:23:07 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:23:07 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:23:07 INFO imstat::::casa ########################################## 2026-04-24 04:23:07 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:23:07 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 ) 2026-04-24 04:23:07 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:23:07 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:23:07 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:23:07 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:23:07 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:23:07 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) 2026-04-24 04:23:07 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:23:07 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:23:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:23:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:23:07 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:23:07 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:23:07 INFO imstat:::: Values --- 2026-04-24 04:23:07 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:23:07 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:23:07 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:23:07 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-04-24 04:23:07 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:23:07 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:23:07 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:23:07 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:23:07 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:23:07 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:23:07 INFO imstat:::: Statistics --- 2026-04-24 04:23:07 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:23:07 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:23:07 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:23:07 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:23:07 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-04-24 04:23:07 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-04-24 04:23:07 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-04-24 04:23:07 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-04-24 04:23:07 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-04-24 04:23:07 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:23:07 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:23:07 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:23:07 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:23:07 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:23:07 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:23:07 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 2026-04-24 04:23:07 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:23:07.195194 End time: 2026-04-24 04:23:07.223844 2026-04-24 04:23:07 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:23:07 INFO imstat::::casa ########################################## 2026-04-24 04:23:07 INFO phaseshift::::casa ########################################## 2026-04-24 04:23:07 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:23:07 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 02:39:52.3901' ) 2026-04-24 04:23:07 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:23:07 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:23:07 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:23:07 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:23:07 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:23:07 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:23:07 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:23:07 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:23:07 INFO MSTransformManager::open Select data 2026-04-24 04:23:07 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:23:10 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 ".". 2026-04-24 04:23:10 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 02:39:52.3901' successfully parsed 2026-04-24 04:23:10 INFO phaseshift::::casa Shift phase center 2026-04-24 04:23:10 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:23:10 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:23:07.241570 End time: 2026-04-24 04:23:10.214323 2026-04-24 04:23:10 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:23:10 INFO phaseshift::::casa ########################################## 2026-04-24 04:23:10 INFO tclean::::casa ########################################## 2026-04-24 04:23:10 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:23:10 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 ) 2026-04-24 04:23:10 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:23:10 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:23:10 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:23:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:23:10 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:23:10 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:23:10 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:23:10 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:23:10 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:23:10 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:23:10 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:23:10 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:23:11 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:23:11 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.020766 2026-04-24 04:23:11 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:23:11 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:23:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:23:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:23:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:23:13 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:23:13 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:23:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:23:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:23:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:23:13 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:23:13 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:23:14 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:23:14 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:23:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:23:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:23:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:23:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:23:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:23:16 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:23:16 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:23:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:23:17 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:23:17 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:23:17 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:23:17 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:23:17 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:23:18 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:23:18 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:23:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:23:18 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:23:18 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:23:18 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:23:18 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:23:19 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:23:19 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:23:19 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:23:10.264933 End time: 2026-04-24 04:23:19.423829 2026-04-24 04:23:19 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:23:19 INFO tclean::::casa ########################################## 2026-04-24 04:23:19 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:23:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:23:19 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) 2026-04-24 04:23:19 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:23:19 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:23:19 2026****** 2026-04-24 04:23:19 INFO ImageFitter::fit+ 2026-04-24 04:23:19 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:23:19 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:23:19 INFO ImageFitter::fit+ --- region: 2026-04-24 04:23:19 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:23:19 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:23:19 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:23:19 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:23:19 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:23:19 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:23:19 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:23:19 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) 2026-04-24 04:23:19 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011688 Jy 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:23:19 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:23:20 INFO imstat::::casa ########################################## 2026-04-24 04:23:20 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:23:20 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 ) 2026-04-24 04:23:20 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:23:20 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:23:20 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:23:20 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:23:20 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:23:20 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) 2026-04-24 04:23:20 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:23:20 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:23:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:23:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:23:20 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-04-24 04:23:20 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-04-24 04:23:20 INFO imstat:::: Values --- 2026-04-24 04:23:20 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:23:20 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:23:20 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:23:20 INFO imstat:::: -- minimum value [min]: -7.78225e-05 Jy/beam 2026-04-24 04:23:20 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:23:20 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:23:20 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:23:20 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:23:20 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:23:20 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:23:20 INFO imstat:::: Statistics --- 2026-04-24 04:23:20 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:23:20 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:23:20 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:23:20 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:23:20 INFO imstat:::: -- Median of the pixel values [median]: -1.86781e-05 Jy/beam 2026-04-24 04:23:20 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73751e-05 Jy/beam 2026-04-24 04:23:20 INFO imstat:::: -- IQR [quartile]: 3.56365e-05 Jy/beam 2026-04-24 04:23:20 INFO imstat:::: -- First quartile [q1]: -3.45278e-05 Jy/beam 2026-04-24 04:23:20 INFO imstat:::: -- Third quartile [q3]: 1.10869e-06 Jy/beam 2026-04-24 04:23:20 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:23:20 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:23:20 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:23:20 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:23:20 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:23:20 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:23:20 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 2026-04-24 04:23:20 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:23:19.501944 End time: 2026-04-24 04:23:19.543343 2026-04-24 04:23:20 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:23:20 INFO imstat::::casa ########################################## 2026-04-24 04:23:20 INFO phaseshift::::casa ########################################## 2026-04-24 04:23:20 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:23:20 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19h52m05.65239 39.968292000deg' ) 2026-04-24 04:23:20 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:23:20 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:23:20 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:23:20 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:23:20 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:23:20 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:23:20 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:23:20 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:23:20 INFO MSTransformManager::open Select data 2026-04-24 04:23:20 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:23:22 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:23:22 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 39.968292000deg' successfully parsed 2026-04-24 04:23:22 INFO phaseshift::::casa Shift phase center 2026-04-24 04:23:23 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:23:23 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:23:19.569258 End time: 2026-04-24 04:23:23.040520 2026-04-24 04:23:23 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:23:23 INFO phaseshift::::casa ########################################## 2026-04-24 04:23:23 INFO tclean::::casa ########################################## 2026-04-24 04:23:23 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:23:23 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 ) 2026-04-24 04:23:23 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:23:23 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:23:23 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:23:23 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:23:23 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:23:23 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:23:23 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:23:23 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:23:23 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:23:23 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:23:23 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:23:23 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:23:25 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:23:25 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029939 2026-04-24 04:23:25 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:23:25 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:23:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:23:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:23:26 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:23:26 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:23:26 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:23:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:23:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:23:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:23:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:23:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:23:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:23:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:23:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:23:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:23:28 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:23:28 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:23:29 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:23:29 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:23:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:23:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:23:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:23:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:23:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:23:30 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:23:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:23:31 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:23:31 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:23:31 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:23:33 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:23:33 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:23:33 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:23:33 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:23:34 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:23:34 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:23:35 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:23:23.100457 End time: 2026-04-24 04:23:34.790916 2026-04-24 04:23:35 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:23:35 INFO tclean::::casa ########################################## 2026-04-24 04:23:35 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:23:35 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:23:35 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) 2026-04-24 04:23:35 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:23:35 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:23:35 2026****** 2026-04-24 04:23:35 INFO ImageFitter::fit+ 2026-04-24 04:23:35 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:23:35 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:23:35 INFO ImageFitter::fit+ --- region: 2026-04-24 04:23:35 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:23:35 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:23:35 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:23:35 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:23:35 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:23:35 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:23:35 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:23:35 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) 2026-04-24 04:23:35 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:23:35 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:23:35 INFO imstat::::casa ########################################## 2026-04-24 04:23:35 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:23:35 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 ) 2026-04-24 04:23:35 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:23:35 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:23:35 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:23:35 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:23:35 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:23:35 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) 2026-04-24 04:23:35 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:23:35 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:23:35 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:23:35 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:23:35 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:23:35 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:23:35 INFO imstat:::: Values --- 2026-04-24 04:23:35 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:23:35 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:23:35 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:23:35 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-04-24 04:23:35 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:23:35 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:23:35 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:23:35 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:23:35 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:23:35 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:23:35 INFO imstat:::: Statistics --- 2026-04-24 04:23:35 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:23:35 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:23:35 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:23:35 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:23:35 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-04-24 04:23:35 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-04-24 04:23:35 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-04-24 04:23:35 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-04-24 04:23:35 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-04-24 04:23:35 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:23:35 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:23:35 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:23:35 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:23:35 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:23:35 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:23:35 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 2026-04-24 04:23:35 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:23:34.867120 End time: 2026-04-24 04:23:34.894960 2026-04-24 04:23:35 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:23:35 INFO imstat::::casa ########################################## 2026-04-24 04:23:35 INFO phaseshift::::casa ########################################## 2026-04-24 04:23:35 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:23:35 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' ) 2026-04-24 04:23:35 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:23:35 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:23:35 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:23:35 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:23:35 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:23:35 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:23:35 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:23:35 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:23:35 INFO MSTransformManager::open Select data 2026-04-24 04:23:35 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:23:36 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:23:36 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19h52m05.65239 0.697578292rad' successfully parsed 2026-04-24 04:23:36 INFO phaseshift::::casa Shift phase center 2026-04-24 04:23:37 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:23:37 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:23:34.912499 End time: 2026-04-24 04:23:37.185571 2026-04-24 04:23:37 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:23:37 INFO phaseshift::::casa ########################################## 2026-04-24 04:23:37 INFO tclean::::casa ########################################## 2026-04-24 04:23:37 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:23:37 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 ) 2026-04-24 04:23:37 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:23:37 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:23:37 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:23:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:23:37 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:23:37 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:23:37 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:23:37 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:23:37 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:23:37 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:23:37 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:23:37 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:23:39 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:23:39 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028599 2026-04-24 04:23:39 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:23:39 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:23:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:23:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:23:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:23:40 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:23:40 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:23:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:23:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:23:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:23:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:23:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:23:42 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:23:42 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:23:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:23:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:23:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:23:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:23:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:23:43 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:23:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:23:43 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:23:43 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:23:43 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:23:44 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:23:44 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:23:44 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:23:45 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:23:45 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:23:45 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:23:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:23:46 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:23:46 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:23:46 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:23:47 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:23:47 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:23:48 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:23:37.242847 End time: 2026-04-24 04:23:48.314167 2026-04-24 04:23:48 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:23:48 INFO tclean::::casa ########################################## 2026-04-24 04:23:48 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:23:48 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:23:48 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) 2026-04-24 04:23:48 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:23:48 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:23:48 2026****** 2026-04-24 04:23:48 INFO ImageFitter::fit+ 2026-04-24 04:23:48 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:23:48 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:23:48 INFO ImageFitter::fit+ --- region: 2026-04-24 04:23:48 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:23:48 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:23:48 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:23:48 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:23:48 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:23:48 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:23:48 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:23:48 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) 2026-04-24 04:23:48 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:23:48 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:23:48 INFO imstat::::casa ########################################## 2026-04-24 04:23:48 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:23:48 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 ) 2026-04-24 04:23:48 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:23:48 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:23:48 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:23:48 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:23:48 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:23:48 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) 2026-04-24 04:23:48 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:23:48 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:23:48 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:23:48 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:23:48 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:23:48 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:23:48 INFO imstat:::: Values --- 2026-04-24 04:23:48 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:23:48 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:23:48 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:23:48 INFO imstat:::: -- minimum value [min]: -7.7789e-05 Jy/beam 2026-04-24 04:23:48 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:23:48 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:23:48 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:23:48 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:23:48 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:23:48 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:23:48 INFO imstat:::: Statistics --- 2026-04-24 04:23:48 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:23:48 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:23:48 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:23:48 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:23:48 INFO imstat:::: -- Median of the pixel values [median]: -1.86647e-05 Jy/beam 2026-04-24 04:23:48 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73649e-05 Jy/beam 2026-04-24 04:23:48 INFO imstat:::: -- IQR [quartile]: 3.56182e-05 Jy/beam 2026-04-24 04:23:48 INFO imstat:::: -- First quartile [q1]: -3.45079e-05 Jy/beam 2026-04-24 04:23:48 INFO imstat:::: -- Third quartile [q3]: 1.11022e-06 Jy/beam 2026-04-24 04:23:48 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:23:48 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:23:48 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:23:48 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:23:48 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:23:48 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:23:48 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 2026-04-24 04:23:48 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:23:48.402895 End time: 2026-04-24 04:23:48.432666 2026-04-24 04:23:48 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:23:48 INFO imstat::::casa ########################################## 2026-04-24 04:23:48 INFO phaseshift::::casa ########################################## 2026-04-24 04:23:48 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:23:48 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 39d58m05.8512' ) 2026-04-24 04:23:48 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:23:48 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:23:48 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:23:48 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:23:48 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:23:48 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:23:48 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:23:48 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:23:48 INFO MSTransformManager::open Select data 2026-04-24 04:23:48 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:23:51 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:23:51 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 39d58m05.8512' successfully parsed 2026-04-24 04:23:51 INFO phaseshift::::casa Shift phase center 2026-04-24 04:23:52 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:23:52 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:23:48.450766 End time: 2026-04-24 04:23:52.005234 2026-04-24 04:23:52 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:23:52 INFO phaseshift::::casa ########################################## 2026-04-24 04:23:52 INFO tclean::::casa ########################################## 2026-04-24 04:23:52 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:23:52 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 ) 2026-04-24 04:23:52 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:23:52 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:23:52 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:23:52 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:23:52 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:23:52 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:23:52 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:23:52 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:23:52 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:23:52 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:23:52 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:23:52 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:23:53 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:23:53 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.01554 2026-04-24 04:23:53 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:23:53 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:23:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:23:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:23:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:23:55 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:23:55 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:23:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:23:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:23:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:23:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:23:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:23:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:23:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:23:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:23:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:23:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:23:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:23:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:23:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:23:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:23:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:23:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:23:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:23:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:23:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:23:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:24:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:24:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:24:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:24:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:24:00 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:24:00 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:24:00 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:24:01 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:24:01 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:24:02 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:23:52.053501 End time: 2026-04-24 04:24:02.291192 2026-04-24 04:24:02 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:24:02 INFO tclean::::casa ########################################## 2026-04-24 04:24:02 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:24:02 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:24:02 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) 2026-04-24 04:24:02 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:24:02 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:24:02 2026****** 2026-04-24 04:24:02 INFO ImageFitter::fit+ 2026-04-24 04:24:02 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:24:02 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:24:02 INFO ImageFitter::fit+ --- region: 2026-04-24 04:24:02 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:24:02 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:24:02 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:24:02 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:24:02 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:24:02 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:24:02 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:24:02 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) 2026-04-24 04:24:02 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:24:02 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:24:02 INFO imstat::::casa ########################################## 2026-04-24 04:24:02 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:24:02 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 ) 2026-04-24 04:24:02 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:24:02 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:24:02 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:24:02 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:24:02 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:24:02 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) 2026-04-24 04:24:02 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:24:02 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:24:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:24:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:24:02 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:24:02 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:24:02 INFO imstat:::: Values --- 2026-04-24 04:24:02 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:24:02 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:24:02 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:24:02 INFO imstat:::: -- minimum value [min]: -7.77773e-05 Jy/beam 2026-04-24 04:24:02 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:24:02 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-24 04:24:02 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:24:02 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-04-24 04:24:02 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:24:02 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:24:02 INFO imstat:::: Statistics --- 2026-04-24 04:24:02 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:24:02 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:24:02 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:24:02 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:24:02 INFO imstat:::: -- Median of the pixel values [median]: -1.86786e-05 Jy/beam 2026-04-24 04:24:02 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73603e-05 Jy/beam 2026-04-24 04:24:02 INFO imstat:::: -- IQR [quartile]: 3.56014e-05 Jy/beam 2026-04-24 04:24:02 INFO imstat:::: -- First quartile [q1]: -3.45038e-05 Jy/beam 2026-04-24 04:24:02 INFO imstat:::: -- Third quartile [q3]: 1.09758e-06 Jy/beam 2026-04-24 04:24:02 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:24:02 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:24:02 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:24:02 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:24:02 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:24:02 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:24:02 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 2026-04-24 04:24:02 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:24:02.370645 End time: 2026-04-24 04:24:02.406647 2026-04-24 04:24:02 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:24:02 INFO imstat::::casa ########################################## 2026-04-24 04:24:02 INFO phaseshift::::casa ########################################## 2026-04-24 04:24:02 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:24:02 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 02:39:52.3901' ) 2026-04-24 04:24:02 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:24:02 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:24:02 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:24:02 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:24:02 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:24:02 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:24:02 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:24:02 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:24:02 INFO MSTransformManager::open Select data 2026-04-24 04:24:02 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:24:04 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-04-24 04:24:04 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 02:39:52.3901' successfully parsed 2026-04-24 04:24:04 INFO phaseshift::::casa Shift phase center 2026-04-24 04:24:05 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:24:05 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:24:02.434366 End time: 2026-04-24 04:24:05.415564 2026-04-24 04:24:05 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:24:05 INFO phaseshift::::casa ########################################## 2026-04-24 04:24:05 INFO tclean::::casa ########################################## 2026-04-24 04:24:05 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:24:05 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, 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 ) 2026-04-24 04:24:05 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:24:05 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:24:05 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:24:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:24:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:24:06 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:24:06 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:24:06 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:24:06 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:24:06 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:24:06 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:24:06 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:24:07 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:24:07 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029745 2026-04-24 04:24:07 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:24:07 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:24:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:24:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:24:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:24:10 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:24:10 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:24:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:24:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:24:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:24:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:24:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:24:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:24:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:24:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:24:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:24:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:24:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:24:13 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:24:13 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:24:13 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:24:14 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:24:14 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:24:14 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:24:15 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:24:15 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:24:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:24:15 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:24:15 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:24:15 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:24:16 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:24:16 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:24:16 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:24:16 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:24:17 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:24:17 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:24:18 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:24:05.475442 End time: 2026-04-24 04:24:18.330885 2026-04-24 04:24:18 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:24:18 INFO tclean::::casa ########################################## 2026-04-24 04:24:18 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:24:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:24:18 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) 2026-04-24 04:24:18 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:24:18 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:24:18 2026****** 2026-04-24 04:24:18 INFO ImageFitter::fit+ 2026-04-24 04:24:18 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:24:18 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:24:18 INFO ImageFitter::fit+ --- region: 2026-04-24 04:24:18 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:24:18 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:24:18 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:24:18 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:24:18 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:24:18 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:24:18 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:24:18 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) 2026-04-24 04:24:18 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116878 Jy 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126494 Jy 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ --- ra: 128.000008 +/- 0.000127 pixels 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:24:18 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:24:18 INFO imstat::::casa ########################################## 2026-04-24 04:24:18 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:24:18 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 ) 2026-04-24 04:24:18 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:24:18 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:24:18 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:24:18 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:24:18 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:24:18 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) 2026-04-24 04:24:18 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:24:18 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:24:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:24:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:24:18 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-04-24 04:24:18 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-04-24 04:24:18 INFO imstat:::: Values --- 2026-04-24 04:24:18 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:24:18 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:24:18 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:24:18 INFO imstat:::: -- minimum value [min]: -7.78143e-05 Jy/beam 2026-04-24 04:24:18 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:24:18 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:24:18 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:24:18 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:24:18 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:24:18 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:24:18 INFO imstat:::: Statistics --- 2026-04-24 04:24:18 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:24:18 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:24:18 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:24:18 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:24:18 INFO imstat:::: -- Median of the pixel values [median]: -1.86838e-05 Jy/beam 2026-04-24 04:24:18 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73769e-05 Jy/beam 2026-04-24 04:24:18 INFO imstat:::: -- IQR [quartile]: 3.5634e-05 Jy/beam 2026-04-24 04:24:18 INFO imstat:::: -- First quartile [q1]: -3.45216e-05 Jy/beam 2026-04-24 04:24:18 INFO imstat:::: -- Third quartile [q3]: 1.1124e-06 Jy/beam 2026-04-24 04:24:18 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:24:18 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:24:18 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:24:18 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:24:18 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:24:18 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:24:18 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 2026-04-24 04:24:18 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:24:18.412330 End time: 2026-04-24 04:24:18.440770 2026-04-24 04:24:18 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:24:18 INFO imstat::::casa ########################################## 2026-04-24 04:24:18 INFO phaseshift::::casa ########################################## 2026-04-24 04:24:18 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:24:18 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 39.968292000deg' ) 2026-04-24 04:24:18 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:24:18 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:24:18 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:24:18 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:24:18 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:24:18 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:24:18 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:24:18 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:24:18 INFO MSTransformManager::open Select data 2026-04-24 04:24:18 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:24:21 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:24:21 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 39.968292000deg' successfully parsed 2026-04-24 04:24:21 INFO phaseshift::::casa Shift phase center 2026-04-24 04:24:22 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:24:22 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:24:18.458187 End time: 2026-04-24 04:24:21.911392 2026-04-24 04:24:22 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:24:22 INFO phaseshift::::casa ########################################## 2026-04-24 04:24:22 INFO tclean::::casa ########################################## 2026-04-24 04:24:22 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:24:22 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 ) 2026-04-24 04:24:22 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:24:22 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:24:22 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:24:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:24:22 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:24:22 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:24:22 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:24:22 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:24:22 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:24:22 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:24:22 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:24:22 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:24:23 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:24:23 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027549 2026-04-24 04:24:23 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:24:23 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:24:24 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:24:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:24:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:24:25 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:24:25 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:24:25 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:24:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:24:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:24:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:24:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:24:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:24:26 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:24:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:24:26 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:24:26 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:24:26 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:24:27 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:24:27 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:24:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:24:27 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:24:27 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:24:27 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:24:28 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:24:28 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852554649114609, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:24:28 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:24:29 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:24:29 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:24:29 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:24:30 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:24:30 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:24:30 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:24:30 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:24:30 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:24:31 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:24:31 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:24:21.962105 End time: 2026-04-24 04:24:31.380966 2026-04-24 04:24:31 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:24:31 INFO tclean::::casa ########################################## 2026-04-24 04:24:31 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:24:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:24:31 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) 2026-04-24 04:24:31 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:24:31 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:24:31 2026****** 2026-04-24 04:24:31 INFO ImageFitter::fit+ 2026-04-24 04:24:31 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:24:31 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:24:31 INFO ImageFitter::fit+ --- region: 2026-04-24 04:24:31 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:24:31 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:24:31 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:24:31 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:24:31 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:24:31 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:24:31 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:24:31 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) 2026-04-24 04:24:31 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:24:31 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:24:31 INFO imstat::::casa ########################################## 2026-04-24 04:24:31 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:24:31 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 ) 2026-04-24 04:24:31 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:24:31 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:24:31 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:24:31 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:24:31 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:24:31 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) 2026-04-24 04:24:31 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:24:31 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:24:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:24:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:24:31 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:24:31 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:24:31 INFO imstat:::: Values --- 2026-04-24 04:24:31 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:24:31 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:24:31 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:24:31 INFO imstat:::: -- minimum value [min]: -7.77773e-05 Jy/beam 2026-04-24 04:24:31 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:24:31 INFO imstat:::: -- position of min value (pixel) [minpos]: [179, 172, 0, 0] 2026-04-24 04:24:31 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:24:31 INFO imstat:::: -- position of min value (world) [minposf]: 19:53:14.390, +40.11.51.660, I, 999981612.9Hz 2026-04-24 04:24:31 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:24:31 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:24:31 INFO imstat:::: Statistics --- 2026-04-24 04:24:31 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:24:31 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:24:31 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:24:31 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:24:31 INFO imstat:::: -- Median of the pixel values [median]: -1.86786e-05 Jy/beam 2026-04-24 04:24:31 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73603e-05 Jy/beam 2026-04-24 04:24:31 INFO imstat:::: -- IQR [quartile]: 3.56014e-05 Jy/beam 2026-04-24 04:24:31 INFO imstat:::: -- First quartile [q1]: -3.45038e-05 Jy/beam 2026-04-24 04:24:31 INFO imstat:::: -- Third quartile [q3]: 1.09758e-06 Jy/beam 2026-04-24 04:24:31 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:24:31 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:24:31 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:24:31 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:24:31 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:24:31 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:24:31 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 2026-04-24 04:24:31 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:24:31.465364 End time: 2026-04-24 04:24:31.493904 2026-04-24 04:24:31 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:24:31 INFO imstat::::casa ########################################## 2026-04-24 04:24:32 INFO phaseshift::::casa ########################################## 2026-04-24 04:24:32 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:24:32 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 19:52:05.6524 0.697578292rad' ) 2026-04-24 04:24:32 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:24:32 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:24:32 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:24:32 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:24:32 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:24:32 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:24:32 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:24:32 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:24:32 INFO MSTransformManager::open Select data 2026-04-24 04:24:32 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:24:34 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:24:34 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 19:52:05.6524 0.697578292rad' successfully parsed 2026-04-24 04:24:34 INFO phaseshift::::casa Shift phase center 2026-04-24 04:24:34 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:24:34 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:24:31.511265 End time: 2026-04-24 04:24:34.427691 2026-04-24 04:24:34 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:24:34 INFO phaseshift::::casa ########################################## 2026-04-24 04:24:34 INFO tclean::::casa ########################################## 2026-04-24 04:24:34 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:24:34 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 ) 2026-04-24 04:24:34 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:24:34 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:24:34 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:24:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:24:35 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:24:35 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:24:35 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:24:35 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:24:35 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:24:35 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:24:35 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:24:35 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:24:36 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:24:36 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.032588 2026-04-24 04:24:36 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:24:36 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:24:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:24:37 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:24:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:24:38 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:24:38 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:24:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:24:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:24:38 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:24:38 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:24:38 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:24:39 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:24:39 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:24:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:24:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:24:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:24:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:24:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:24:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:24:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:24:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:24:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:24:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:24:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:24:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:24:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:24:42 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:24:42 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:24:42 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:24:43 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:24:43 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:24:43 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:24:43 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:24:43 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:24:44 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:24:45 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:24:34.478853 End time: 2026-04-24 04:24:44.968525 2026-04-24 04:24:45 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:24:45 INFO tclean::::casa ########################################## 2026-04-24 04:24:45 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:24:45 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:24:45 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) 2026-04-24 04:24:45 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:24:45 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:24:45 2026****** 2026-04-24 04:24:45 INFO ImageFitter::fit+ 2026-04-24 04:24:45 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:24:45 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:24:45 INFO ImageFitter::fit+ --- region: 2026-04-24 04:24:45 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:24:45 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:24:45 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:24:45 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:24:45 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:24:45 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:24:45 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:24:45 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) 2026-04-24 04:24:45 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116871 Jy 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126487 Jy 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000001 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ --- ra: 128.000009 +/- 0.000127 pixels 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:24:45 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:24:45 INFO imstat::::casa ########################################## 2026-04-24 04:24:45 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:24:45 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 ) 2026-04-24 04:24:45 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:24:45 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:24:45 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:24:45 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:24:45 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:24:45 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) 2026-04-24 04:24:45 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:24:45 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:24:45 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:24:45 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:24:45 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:24:45 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:24:45 INFO imstat:::: Values --- 2026-04-24 04:24:45 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:24:45 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:24:45 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:24:45 INFO imstat:::: -- minimum value [min]: -7.7781e-05 Jy/beam 2026-04-24 04:24:45 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:24:45 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:24:45 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:24:45 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:24:45 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:24:45 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:24:45 INFO imstat:::: Statistics --- 2026-04-24 04:24:45 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:24:45 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:24:45 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:24:45 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:24:45 INFO imstat:::: -- Median of the pixel values [median]: -1.86714e-05 Jy/beam 2026-04-24 04:24:45 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73593e-05 Jy/beam 2026-04-24 04:24:45 INFO imstat:::: -- IQR [quartile]: 3.56161e-05 Jy/beam 2026-04-24 04:24:45 INFO imstat:::: -- First quartile [q1]: -3.45125e-05 Jy/beam 2026-04-24 04:24:45 INFO imstat:::: -- Third quartile [q3]: 1.10364e-06 Jy/beam 2026-04-24 04:24:45 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:24:45 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:24:45 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:24:45 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:24:45 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:24:45 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:24:45 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 2026-04-24 04:24:45 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:24:45.049963 End time: 2026-04-24 04:24:45.078120 2026-04-24 04:24:45 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:24:45 INFO imstat::::casa ########################################## 2026-04-24 04:24:45 INFO phaseshift::::casa ########################################## 2026-04-24 04:24:45 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:24:45 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 39d58m05.8512' ) 2026-04-24 04:24:45 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:24:45 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:24:45 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:24:45 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:24:45 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:24:45 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:24:45 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:24:45 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:24:45 INFO MSTransformManager::open Select data 2026-04-24 04:24:45 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:24:48 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:24:48 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 39d58m05.8512' successfully parsed 2026-04-24 04:24:48 INFO phaseshift::::casa Shift phase center 2026-04-24 04:24:48 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:24:48 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:24:45.096389 End time: 2026-04-24 04:24:48.364789 2026-04-24 04:24:48 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:24:48 INFO phaseshift::::casa ########################################## 2026-04-24 04:24:48 INFO tclean::::casa ########################################## 2026-04-24 04:24:48 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:24:48 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, 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 ) 2026-04-24 04:24:48 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:24:48 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:24:48 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:24:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:24:49 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:24:49 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:24:49 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:24:49 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:24:49 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:24:49 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:24:49 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:24:49 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:24:50 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:24:50 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029607 2026-04-24 04:24:50 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:24:50 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:24:51 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:24:51 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:24:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:24:52 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:24:52 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:24:52 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:24:52 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:24:53 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:24:53 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:24:53 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:24:54 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:24:54 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:24:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:24:54 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:24:54 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:24:54 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:24:55 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:24:55 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:24:55 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:24:56 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:24:56 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:24:56 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:24:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:24:57 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:24:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:24:57 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:24:57 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:24:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:24:58 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:24:58 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:24:58 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:24:58 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:24:59 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:24:59 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:25:00 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:24:48.402861 End time: 2026-04-24 04:25:00.048668 2026-04-24 04:25:00 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:25:00 INFO tclean::::casa ########################################## 2026-04-24 04:25:00 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:25:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:25:00 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) 2026-04-24 04:25:00 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:25:00 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:25:00 2026****** 2026-04-24 04:25:00 INFO ImageFitter::fit+ 2026-04-24 04:25:00 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:25:00 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:25:00 INFO ImageFitter::fit+ --- region: 2026-04-24 04:25:00 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:25:00 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:25:00 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:25:00 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:25:00 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:25:00 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:25:00 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:25:00 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) 2026-04-24 04:25:00 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:25:00 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:25:00 INFO imstat::::casa ########################################## 2026-04-24 04:25:00 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:25:00 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 ) 2026-04-24 04:25:00 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:25:00 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:25:00 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:25:00 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:25:00 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:25:00 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) 2026-04-24 04:25:00 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:25:00 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:25:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:25:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:25:00 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:25:00 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:25:00 INFO imstat:::: Values --- 2026-04-24 04:25:00 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:25:00 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:25:00 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:25:00 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-04-24 04:25:00 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:25:00 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:25:00 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:25:00 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:25:00 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:25:00 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:25:00 INFO imstat:::: Statistics --- 2026-04-24 04:25:00 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:25:00 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:25:00 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:25:00 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:25:00 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-04-24 04:25:00 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-04-24 04:25:00 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-04-24 04:25:00 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-04-24 04:25:00 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-04-24 04:25:00 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:25:00 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:25:00 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:25:00 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:25:00 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:25:00 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:25:00 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 2026-04-24 04:25:00 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:25:00.118032 End time: 2026-04-24 04:25:00.144411 2026-04-24 04:25:00 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:25:00 INFO imstat::::casa ########################################## 2026-04-24 04:25:00 INFO phaseshift::::casa ########################################## 2026-04-24 04:25:00 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:25:00 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 02:39:52.3901' ) 2026-04-24 04:25:00 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:25:00 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:25:00 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:25:00 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:25:00 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:25:00 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:25:00 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:25:00 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:25:00 INFO MSTransformManager::open Select data 2026-04-24 04:25:00 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:25:02 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 ".". 2026-04-24 04:25:02 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 02:39:52.3901' successfully parsed 2026-04-24 04:25:02 INFO phaseshift::::casa Shift phase center 2026-04-24 04:25:03 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:25:03 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:25:00.159980 End time: 2026-04-24 04:25:03.176216 2026-04-24 04:25:03 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:25:03 INFO phaseshift::::casa ########################################## 2026-04-24 04:25:03 INFO tclean::::casa ########################################## 2026-04-24 04:25:03 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:25:03 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 ) 2026-04-24 04:25:03 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:25:03 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:25:03 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:25:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:25:03 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:25:03 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:25:03 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:25:03 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:25:03 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:25:03 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:25:03 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:25:03 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:25:05 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:25:05 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.027819 2026-04-24 04:25:05 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:25:05 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:25:06 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:25:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:25:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:25:08 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:25:08 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:25:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:25:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:25:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:25:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:25:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:25:09 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:25:09 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:25:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:25:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:25:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:25:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:25:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:25:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:25:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:25:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:25:10 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:25:10 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:25:11 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:25:11 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:25:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:25:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:25:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:25:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:25:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:25:12 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:25:12 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:25:12 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:25:13 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:25:13 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:25:14 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:25:03.223453 End time: 2026-04-24 04:25:14.029928 2026-04-24 04:25:14 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:25:14 INFO tclean::::casa ########################################## 2026-04-24 04:25:14 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:25:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:25:14 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) 2026-04-24 04:25:14 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:25:14 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:25:14 2026****** 2026-04-24 04:25:14 INFO ImageFitter::fit+ 2026-04-24 04:25:14 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:25:14 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:25:14 INFO ImageFitter::fit+ --- region: 2026-04-24 04:25:14 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:25:14 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:25:14 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:25:14 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:25:14 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:25:14 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:25:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:25:14 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) 2026-04-24 04:25:14 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.00011688 Jy 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126496 Jy 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:25:14 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:25:14 INFO imstat::::casa ########################################## 2026-04-24 04:25:14 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:25:14 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 ) 2026-04-24 04:25:14 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:25:14 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:25:14 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:25:14 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:25:14 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:25:14 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) 2026-04-24 04:25:14 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:25:14 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:25:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:25:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:25:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-04-24 04:25:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-04-24 04:25:14 INFO imstat:::: Values --- 2026-04-24 04:25:14 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:25:14 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:25:14 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:25:14 INFO imstat:::: -- minimum value [min]: -7.78225e-05 Jy/beam 2026-04-24 04:25:14 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:25:14 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:25:14 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:25:14 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:25:14 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:25:14 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:25:14 INFO imstat:::: Statistics --- 2026-04-24 04:25:14 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:25:14 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:25:14 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:25:14 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:25:14 INFO imstat:::: -- Median of the pixel values [median]: -1.86781e-05 Jy/beam 2026-04-24 04:25:14 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73751e-05 Jy/beam 2026-04-24 04:25:14 INFO imstat:::: -- IQR [quartile]: 3.56365e-05 Jy/beam 2026-04-24 04:25:14 INFO imstat:::: -- First quartile [q1]: -3.45278e-05 Jy/beam 2026-04-24 04:25:14 INFO imstat:::: -- Third quartile [q3]: 1.10869e-06 Jy/beam 2026-04-24 04:25:14 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:25:14 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:25:14 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:25:14 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:25:14 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:25:14 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:25:14 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 2026-04-24 04:25:14 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:25:14.099074 End time: 2026-04-24 04:25:14.133587 2026-04-24 04:25:14 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:25:14 INFO imstat::::casa ########################################## 2026-04-24 04:25:14 INFO phaseshift::::casa ########################################## 2026-04-24 04:25:14 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:25:14 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 39.968292000deg' ) 2026-04-24 04:25:14 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:25:14 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:25:14 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:25:14 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:25:14 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:25:14 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:25:14 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:25:14 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:25:14 INFO MSTransformManager::open Select data 2026-04-24 04:25:14 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:25:16 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:25:16 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 39.968292000deg' successfully parsed 2026-04-24 04:25:16 INFO phaseshift::::casa Shift phase center 2026-04-24 04:25:17 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:25:17 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:25:14.159836 End time: 2026-04-24 04:25:17.074513 2026-04-24 04:25:17 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:25:17 INFO phaseshift::::casa ########################################## 2026-04-24 04:25:17 INFO tclean::::casa ########################################## 2026-04-24 04:25:17 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:25:17 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 ) 2026-04-24 04:25:17 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:25:17 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:25:17 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:25:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:25:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:25:17 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:25:17 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:25:17 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:25:17 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:25:17 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:25:17 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:25:17 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:25:19 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:25:19 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.028645 2026-04-24 04:25:19 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:25:19 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:25:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:25:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:25:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:25:21 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:25:21 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:25:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:25:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:25:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:25:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:25:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:25:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:25:22 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:25:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:25:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:25:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:25:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:25:23 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:25:23 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:25:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:25:23 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:25:23 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:25:23 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:25:24 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:25:24 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:25:24 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:25:25 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:25:25 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:25:25 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:25:26 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:25:26 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:25:26 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:25:26 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:25:26 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:25:26 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:25:27 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:25:17.136119 End time: 2026-04-24 04:25:27.425802 2026-04-24 04:25:27 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:25:27 INFO tclean::::casa ########################################## 2026-04-24 04:25:27 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:25:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:25:27 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) 2026-04-24 04:25:27 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:25:27 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:25:27 2026****** 2026-04-24 04:25:27 INFO ImageFitter::fit+ 2026-04-24 04:25:27 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:25:27 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:25:27 INFO ImageFitter::fit+ --- region: 2026-04-24 04:25:27 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:25:27 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:25:27 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:25:27 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:25:27 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:25:27 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:25:27 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:25:27 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) 2026-04-24 04:25:27 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116875 Jy 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126492 Jy 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000004 +/- 0.000777 arcsec 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:25:27 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:25:27 INFO imstat::::casa ########################################## 2026-04-24 04:25:27 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:25:27 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 ) 2026-04-24 04:25:28 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:25:28 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:25:28 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:25:28 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:25:28 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:25:28 INFO imstat::ImageRegion::fromRecord+ [0, 0, 0, 0] to [255, 255, 0, 0] (19:55:18.876, +39.48.53.864, I, 999981612.9Hz to 19:52:21.081, +40.22.53.888, I, 999981612.9Hz) 2026-04-24 04:25:28 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:25:28 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:25:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:25:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:25:28 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:25:28 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:25:28 INFO imstat:::: Values --- 2026-04-24 04:25:28 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:25:28 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:25:28 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:25:28 INFO imstat:::: -- minimum value [min]: -7.77826e-05 Jy/beam 2026-04-24 04:25:28 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:25:28 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:25:28 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:25:28 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:25:28 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:25:28 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:25:28 INFO imstat:::: Statistics --- 2026-04-24 04:25:28 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:25:28 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:25:28 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:25:28 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:25:28 INFO imstat:::: -- Median of the pixel values [median]: -1.86649e-05 Jy/beam 2026-04-24 04:25:28 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73604e-05 Jy/beam 2026-04-24 04:25:28 INFO imstat:::: -- IQR [quartile]: 3.56026e-05 Jy/beam 2026-04-24 04:25:28 INFO imstat:::: -- First quartile [q1]: -3.45067e-05 Jy/beam 2026-04-24 04:25:28 INFO imstat:::: -- Third quartile [q3]: 1.09593e-06 Jy/beam 2026-04-24 04:25:28 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:25:28 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:25:28 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:25:28 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:25:28 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:25:28 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:25:28 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 2026-04-24 04:25:28 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:25:27.499248 End time: 2026-04-24 04:25:27.526787 2026-04-24 04:25:28 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:25:28 INFO imstat::::casa ########################################## 2026-04-24 04:25:28 INFO phaseshift::::casa ########################################## 2026-04-24 04:25:28 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:25:28 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 298.023551625deg 0.697578292rad' ) 2026-04-24 04:25:28 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:25:28 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:25:28 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:25:28 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:25:28 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:25:28 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:25:28 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:25:28 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:25:28 INFO MSTransformManager::open Select data 2026-04-24 04:25:28 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:25:31 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:25:31 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 298.023551625deg 0.697578292rad' successfully parsed 2026-04-24 04:25:31 INFO phaseshift::::casa Shift phase center 2026-04-24 04:25:31 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:25:32 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:25:27.543880 End time: 2026-04-24 04:25:31.578299 2026-04-24 04:25:32 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:25:32 INFO phaseshift::::casa ########################################## 2026-04-24 04:25:32 INFO tclean::::casa ########################################## 2026-04-24 04:25:32 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:25:32 INFO tclean::::casa tclean( vis='sim_data_pshift.ms', selectdata=True, field='', spw='', timerange='', uvrange='', antenna='', scan='', observation='', intent='', datacolumn='data', imagename='im_post_phaseshift', imsize=256, cell='8.0arcsec', phasecenter='', stokes='I', projection='SIN', startmodel='', specmode='mfs', reffreq='', nchan=-1, start='', width='', outframe='LSRK', veltype='radio', restfreq=[], interpolation='linear', perchanweightdensity=True, gridder='standard', facets=1, psfphasecenter='', wprojplanes=1, vptable='', mosweight=True, aterm=True, psterm=False, wbawp=True, conjbeams=False, cfcache='', usepointing=False, computepastep=360.0, rotatepastep=360.0, pointingoffsetsigdev=[], pblimit=-0.1, normtype='flatnoise', deconvolver='hogbom', scales=[], nterms=2, smallscalebias=0.0, fusedthreshold=0.0, largestscale=-1, restoration=True, restoringbeam=[], pbcor=False, outlierfile='', weighting='natural', robust=0.5, noise='1.0Jy', npixels=0, 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 ) 2026-04-24 04:25:32 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:25:32 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:25:32 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:25:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:25:32 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:25:32 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:25:32 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:25:32 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:25:32 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:25:32 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:25:32 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:25:32 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:25:33 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:25:34 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.026436 2026-04-24 04:25:34 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:25:34 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:25:35 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:25:36 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:25:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:25:36 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:25:36 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:25:36 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:25:36 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:25:37 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:25:37 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:25:37 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:25:38 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:25:38 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:25:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:25:39 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:25:39 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:25:39 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:25:40 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:25:40 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:25:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:25:40 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:25:40 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:25:40 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:25:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:25:41 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852552320808172, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:25:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:25:41 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:25:41 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:25:41 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:25:41 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:25:41 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:25:41 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:25:41 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:25:42 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:25:42 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:25:43 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:25:31.632979 End time: 2026-04-24 04:25:42.753395 2026-04-24 04:25:43 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:25:43 INFO tclean::::casa ########################################## 2026-04-24 04:25:43 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:25:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:25:43 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) 2026-04-24 04:25:43 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:25:43 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:25:43 2026****** 2026-04-24 04:25:43 INFO ImageFitter::fit+ 2026-04-24 04:25:43 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:25:43 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:25:43 INFO ImageFitter::fit+ --- region: 2026-04-24 04:25:43 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:25:43 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:25:43 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:25:43 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:25:43 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:25:43 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:25:43 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:25:43 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) 2026-04-24 04:25:43 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116874 Jy 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126488 Jy 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ --- ra: 19:53:50.000000 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ --- ra: 127.999996 +/- 0.000127 pixels 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:25:43 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:25:43 INFO imstat::::casa ########################################## 2026-04-24 04:25:43 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:25:43 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 ) 2026-04-24 04:25:43 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:25:43 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:25:43 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:25:43 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:25:43 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:25:43 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) 2026-04-24 04:25:43 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:25:43 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:25:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:25:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:25:43 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:25:43 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:25:43 INFO imstat:::: Values --- 2026-04-24 04:25:43 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:25:43 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:25:43 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:25:43 INFO imstat:::: -- minimum value [min]: -7.7789e-05 Jy/beam 2026-04-24 04:25:43 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:25:43 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:25:43 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:25:43 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:25:43 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:25:43 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:25:43 INFO imstat:::: Statistics --- 2026-04-24 04:25:43 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:25:43 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:25:43 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:25:43 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:25:43 INFO imstat:::: -- Median of the pixel values [median]: -1.86647e-05 Jy/beam 2026-04-24 04:25:43 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73649e-05 Jy/beam 2026-04-24 04:25:43 INFO imstat:::: -- IQR [quartile]: 3.56182e-05 Jy/beam 2026-04-24 04:25:43 INFO imstat:::: -- First quartile [q1]: -3.45079e-05 Jy/beam 2026-04-24 04:25:43 INFO imstat:::: -- Third quartile [q3]: 1.11022e-06 Jy/beam 2026-04-24 04:25:43 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:25:43 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:25:43 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:25:43 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:25:43 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:25:43 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:25:43 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 2026-04-24 04:25:43 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:25:42.814439 End time: 2026-04-24 04:25:42.838902 2026-04-24 04:25:43 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:25:43 INFO imstat::::casa ########################################## 2026-04-24 04:25:43 INFO phaseshift::::casa ########################################## 2026-04-24 04:25:43 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:25:43 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 39d58m05.8512' ) 2026-04-24 04:25:43 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:25:43 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:25:43 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:25:43 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:25:43 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:25:43 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:25:43 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:25:43 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:25:43 INFO MSTransformManager::open Select data 2026-04-24 04:25:43 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:25:44 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:25:44 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 39d58m05.8512' successfully parsed 2026-04-24 04:25:44 INFO phaseshift::::casa Shift phase center 2026-04-24 04:25:45 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:25:45 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:25:42.854419 End time: 2026-04-24 04:25:44.722245 2026-04-24 04:25:45 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:25:45 INFO phaseshift::::casa ########################################## 2026-04-24 04:25:45 INFO tclean::::casa ########################################## 2026-04-24 04:25:45 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:25:45 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 ) 2026-04-24 04:25:45 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:25:45 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:25:45 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:25:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:25:45 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:25:45 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:25:45 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:25:45 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:25:45 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:25:45 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:25:45 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:25:45 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:25:45 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:25:45 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.011013 2026-04-24 04:25:45 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:25:45 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:25:46 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:25:46 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:25:46 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:25:46 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:25:46 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:25:46 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:25:46 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:25:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:25:47 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:25:47 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:25:47 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:25:47 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:25:47 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:25:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:25:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:25:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:25:48 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:25:48 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:25:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:25:48 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:25:48 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:25:48 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:25:49 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:25:49 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:25:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:25:49 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:25:49 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:25:49 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:25:50 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:25:50 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:25:50 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:25:50 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:25:50 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:25:50 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:25:51 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:25:44.747259 End time: 2026-04-24 04:25:51.063976 2026-04-24 04:25:51 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:25:51 INFO tclean::::casa ########################################## 2026-04-24 04:25:51 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:25:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:25:51 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) 2026-04-24 04:25:51 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:25:51 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:25:51 2026****** 2026-04-24 04:25:51 INFO ImageFitter::fit+ 2026-04-24 04:25:51 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:25:51 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:25:51 INFO ImageFitter::fit+ --- region: 2026-04-24 04:25:51 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:25:51 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:25:51 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:25:51 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:25:51 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:25:51 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:25:51 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:25:51 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) 2026-04-24 04:25:51 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:25:51 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:25:51 INFO imstat::::casa ########################################## 2026-04-24 04:25:51 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:25:51 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 ) 2026-04-24 04:25:51 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:25:51 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:25:51 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:25:51 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:25:51 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:25:51 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) 2026-04-24 04:25:51 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:25:51 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:25:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:25:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:25:51 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:25:51 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:25:51 INFO imstat:::: Values --- 2026-04-24 04:25:51 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:25:51 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:25:51 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:25:51 INFO imstat:::: -- minimum value [min]: -7.77853e-05 Jy/beam 2026-04-24 04:25:51 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:25:51 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:25:51 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:25:51 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:25:51 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:25:51 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:25:51 INFO imstat:::: Statistics --- 2026-04-24 04:25:51 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:25:51 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:25:51 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:25:51 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:25:51 INFO imstat:::: -- Median of the pixel values [median]: -1.86679e-05 Jy/beam 2026-04-24 04:25:51 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73586e-05 Jy/beam 2026-04-24 04:25:51 INFO imstat:::: -- IQR [quartile]: 3.56112e-05 Jy/beam 2026-04-24 04:25:51 INFO imstat:::: -- First quartile [q1]: -3.45109e-05 Jy/beam 2026-04-24 04:25:51 INFO imstat:::: -- Third quartile [q3]: 1.10039e-06 Jy/beam 2026-04-24 04:25:51 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:25:51 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:25:51 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:25:51 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:25:51 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:25:51 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:25:51 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 2026-04-24 04:25:51 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:25:51.144677 End time: 2026-04-24 04:25:51.181905 2026-04-24 04:25:51 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:25:51 INFO imstat::::casa ########################################## 2026-04-24 04:25:51 INFO phaseshift::::casa ########################################## 2026-04-24 04:25:51 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:25:51 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 02:39:52.3901' ) 2026-04-24 04:25:51 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:25:51 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:25:51 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:25:51 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:25:51 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:25:51 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:25:51 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:25:51 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:25:51 INFO MSTransformManager::open Select data 2026-04-24 04:25:51 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:25:53 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. NOTE: you provided the Declination/Latitude value "02:39:52.3901" which is understood to be in units of hours. If you meant degrees, please replace ":" by ".". 2026-04-24 04:25:53 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 02:39:52.3901' successfully parsed 2026-04-24 04:25:53 INFO phaseshift::::casa Shift phase center 2026-04-24 04:25:54 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:25:54 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:25:51.224680 End time: 2026-04-24 04:25:53.927236 2026-04-24 04:25:54 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:25:54 INFO phaseshift::::casa ########################################## 2026-04-24 04:25:54 INFO tclean::::casa ########################################## 2026-04-24 04:25:54 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:25:54 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 ) 2026-04-24 04:25:54 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:25:54 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:25:54 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:25:54 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:25:54 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:25:54 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:25:54 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:25:54 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:25:54 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:25:54 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:25:54 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:25:54 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:25:56 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:25:56 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029834 2026-04-24 04:25:56 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:25:56 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:25:57 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:25:57 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:25:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:25:58 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:25:58 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:25:58 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:25:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:25:58 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:25:58 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:25:58 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:25:59 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:25:59 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:25:59 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:26:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:26:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:26:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:26:00 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:26:00 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:26:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:26:00 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:26:00 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:26:00 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:26:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:26:01 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852551156654954, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:26:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985255, CycleNiter=2, Gain=0.3 2026-04-24 04:26:01 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:26:01 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:26:01 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:26:01 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:26:01 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:26:01 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:26:01 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:26:02 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:26:02 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:26:03 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:25:53.988458 End time: 2026-04-24 04:26:02.723041 2026-04-24 04:26:03 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:26:03 INFO tclean::::casa ########################################## 2026-04-24 04:26:03 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:26:03 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:26:03 INFO ImageRegion::fromRecord+ [118, 118, 0, 0] to [138, 138, 0, 0] (19:53:56.970, +40.04.39.987, I, 999981612.9Hz to 19:53:43.025, +40.07.19.987, I, 999981612.9Hz) 2026-04-24 04:26:03 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:26:03 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:26:03 2026****** 2026-04-24 04:26:03 INFO ImageFitter::fit+ 2026-04-24 04:26:03 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:26:03 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:26:03 INFO ImageFitter::fit+ --- region: 2026-04-24 04:26:03 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:26:03 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:26:03 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:26:03 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:26:03 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:26:03 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:26:03 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:26:03 INFO ImageRegion::fromRecord+ [5, 5] to [15, 15] (19:53:53.486, +40.05.19.997 to 19:53:46.513, +40.06.39.997) 2026-04-24 04:26:03 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116885 Jy 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126501 Jy 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000034 +/- 0.000777 arcsec 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ --- dec: 127.999963 +/- 0.000097 pixels 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 250 marcsec 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:26:03 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:26:03 INFO imstat::::casa ########################################## 2026-04-24 04:26:03 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:26:03 INFO imstat::::casa imstat( imagename='im_post_phaseshift.image', axes=[], region='', box='', chans='', stokes='', listit=True, verbose=True, mask='', stretch=False, logfile='', append=True, algorithm='classic', fence=-1.0, center='mean', lside=True, zscore=-1.0, maxiter=-1, clmethod='auto', niter=3 ) 2026-04-24 04:26:03 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:26:03 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:26:03 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:26:03 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:26:03 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:26:03 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) 2026-04-24 04:26:03 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:26:03 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:26:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:26:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:26:03 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.865, I, 999981612.9Hz 2026-04-24 04:26:03 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.889, I, 999981612.9Hz 2026-04-24 04:26:03 INFO imstat:::: Values --- 2026-04-24 04:26:03 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:26:03 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:26:03 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:26:03 INFO imstat:::: -- minimum value [min]: -7.78268e-05 Jy/beam 2026-04-24 04:26:03 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:26:03 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:26:03 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:26:03 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:26:03 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:26:03 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:26:03 INFO imstat:::: Statistics --- 2026-04-24 04:26:03 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:26:03 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:26:03 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:26:03 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:26:03 INFO imstat:::: -- Median of the pixel values [median]: -1.8675e-05 Jy/beam 2026-04-24 04:26:03 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73782e-05 Jy/beam 2026-04-24 04:26:03 INFO imstat:::: -- IQR [quartile]: 3.56598e-05 Jy/beam 2026-04-24 04:26:03 INFO imstat:::: -- First quartile [q1]: -3.45364e-05 Jy/beam 2026-04-24 04:26:03 INFO imstat:::: -- Third quartile [q3]: 1.12335e-06 Jy/beam 2026-04-24 04:26:03 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:26:03 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:26:03 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:26:03 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:26:03 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:26:03 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:26:03 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 2026-04-24 04:26:03 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:26:02.793432 End time: 2026-04-24 04:26:02.833647 2026-04-24 04:26:03 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:26:03 INFO imstat::::casa ########################################## 2026-04-24 04:26:03 INFO phaseshift::::casa ########################################## 2026-04-24 04:26:03 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:26:03 INFO phaseshift::::casa phaseshift( vis='sim_data.ms', outputvis='sim_data_pshift.ms', keepmms=True, field='', spw='', scan='', intent='', array='', observation='', datacolumn='all', phasecenter='B1950_VLA 5.201492224rad 39.968292000deg' ) 2026-04-24 04:26:03 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:26:03 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:26:03 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:26:03 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:26:03 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:26:03 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:26:03 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:26:03 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:26:03 INFO MSTransformManager::open Select data 2026-04-24 04:26:03 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:26:05 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:26:05 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 39.968292000deg' successfully parsed 2026-04-24 04:26:05 INFO phaseshift::::casa Shift phase center 2026-04-24 04:26:06 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:26:06 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:26:02.859947 End time: 2026-04-24 04:26:05.537379 2026-04-24 04:26:06 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:26:06 INFO phaseshift::::casa ########################################## 2026-04-24 04:26:06 INFO tclean::::casa ########################################## 2026-04-24 04:26:06 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:26:06 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 ) 2026-04-24 04:26:06 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:26:06 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:26:06 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:26:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:26:06 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:26:06 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:26:06 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:26:06 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:26:06 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:26:06 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:26:06 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:26:06 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:26:06 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:26:06 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.019387 2026-04-24 04:26:06 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:26:06 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:26:07 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:26:07 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:26:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:26:07 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:26:07 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:26:07 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:26:07 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:26:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:26:08 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:26:08 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:26:08 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:26:08 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:26:08 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:26:09 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:26:09 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:26:09 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:26:10 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:26:10 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:26:10 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:26:11 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:26:11 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:26:11 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:26:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:26:12 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852556977421045, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:26:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:26:12 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:26:12 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:26:12 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:26:12 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:26:12 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:26:12 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:26:12 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:26:13 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:26:13 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:26:14 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:26:05.568155 End time: 2026-04-24 04:26:14.004311 2026-04-24 04:26:14 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:26:14 INFO tclean::::casa ########################################## 2026-04-24 04:26:14 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:26:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:26:14 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) 2026-04-24 04:26:14 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:26:14 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:26:14 2026****** 2026-04-24 04:26:14 INFO ImageFitter::fit+ 2026-04-24 04:26:14 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:26:14 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:26:14 INFO ImageFitter::fit+ --- region: 2026-04-24 04:26:14 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:26:14 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:26:14 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:26:14 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:26:14 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:26:14 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:26:14 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:26:14 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) 2026-04-24 04:26:14 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116879 Jy 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126495 Jy 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000003 +/- 0.000777 arcsec 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ --- dec: 127.999997 +/- 0.000097 pixels 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:26:14 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:26:14 INFO imstat::::casa ########################################## 2026-04-24 04:26:14 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:26:14 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 ) 2026-04-24 04:26:14 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:26:14 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:26:14 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:26:14 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:26:14 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:26:14 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) 2026-04-24 04:26:14 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:26:14 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:26:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:26:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:26:14 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:26:14 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:26:14 INFO imstat:::: Values --- 2026-04-24 04:26:14 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:26:14 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:26:14 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:26:14 INFO imstat:::: -- minimum value [min]: -7.77853e-05 Jy/beam 2026-04-24 04:26:14 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:26:14 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:26:14 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:26:14 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:26:14 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:26:14 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:26:14 INFO imstat:::: Statistics --- 2026-04-24 04:26:14 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:26:14 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:26:14 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:26:14 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:26:14 INFO imstat:::: -- Median of the pixel values [median]: -1.86679e-05 Jy/beam 2026-04-24 04:26:14 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73586e-05 Jy/beam 2026-04-24 04:26:14 INFO imstat:::: -- IQR [quartile]: 3.56112e-05 Jy/beam 2026-04-24 04:26:14 INFO imstat:::: -- First quartile [q1]: -3.45109e-05 Jy/beam 2026-04-24 04:26:14 INFO imstat:::: -- Third quartile [q3]: 1.10039e-06 Jy/beam 2026-04-24 04:26:14 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:26:14 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:26:14 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:26:14 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:26:14 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:26:14 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:26:14 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 2026-04-24 04:26:14 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:26:14.071141 End time: 2026-04-24 04:26:14.096752 2026-04-24 04:26:14 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:26:14 INFO imstat::::casa ########################################## 2026-04-24 04:26:14 INFO phaseshift::::casa ########################################## 2026-04-24 04:26:14 INFO phaseshift::::casa ##### Begin Task: phaseshift ##### 2026-04-24 04:26:14 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 5.201492224rad 0.697578292rad' ) 2026-04-24 04:26:14 INFO MSTransformManager::parseMsSpecParams Input file name is sim_data.ms 2026-04-24 04:26:14 INFO MSTransformManager::parseMsSpecParams Data column is ALL 2026-04-24 04:26:14 INFO MSTransformManager::parseMsSpecParams Output file name is sim_data_pshift.ms 2026-04-24 04:26:14 INFO MSTransformManager::parseMsSpecParams Re-index is disabled 2026-04-24 04:26:14 INFO MSTransformManager::parsePhaseShiftParams Phase shifting via TVI with support for large offset/angle 2026-04-24 04:26:14 INFO MSTransformManager::colCheckInfo Adding DATA column to output MS from input DATA column 2026-04-24 04:26:14 INFO MSTransformManager::colCheckInfo Adding CORRECTED_DATA column to output MS from input CORRECTED_DATA column 2026-04-24 04:26:14 INFO MSTransformManager::colCheckInfo Adding MODEL_DATA column to output MS from input MODEL_DATA column 2026-04-24 04:26:14 INFO MSTransformManager::open Select data 2026-04-24 04:26:14 INFO MSTransformManager::createOutputMSStructure Create output MS structure 2026-04-24 04:26:16 INFO PhaseShiftingTVI::parsePhasecenter Interpreting phasecenter as a single string, to be applied to all input (selected) fields. 2026-04-24 04:26:16 INFO PhaseShiftingTVI::checkPhaseCenterStr Phase center 'B1950_VLA 5.201492224rad 0.697578292rad' successfully parsed 2026-04-24 04:26:16 INFO phaseshift::::casa Shift phase center 2026-04-24 04:26:17 INFO phaseshift::::casa Updating the FIELD subtable of the output MeasurementSet with shifted phase centers 2026-04-24 04:26:17 INFO phaseshift::::casa Task phaseshift complete. Start time: 2026-04-24 04:26:14.112840 End time: 2026-04-24 04:26:17.213225 2026-04-24 04:26:17 INFO phaseshift::::casa ##### End Task: phaseshift ##### 2026-04-24 04:26:17 INFO phaseshift::::casa ########################################## 2026-04-24 04:26:17 INFO tclean::::casa ########################################## 2026-04-24 04:26:17 INFO tclean::::casa ##### Begin Task: tclean ##### 2026-04-24 04:26:17 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 ) 2026-04-24 04:26:17 INFO tclean::::casa Verifying Input Parameters 2026-04-24 04:26:17 INFO SynthesisImagerVi2::selectData MS : sim_data_pshift.ms | [Opened in readonly mode] 2026-04-24 04:26:17 INFO SynthesisImagerVi2::selectData NRows selected : 6318 2026-04-24 04:26:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:26:17 INFO SynthesisImagerVi2::defineImage Define image coordinates for [im_post_phaseshift] : 2026-04-24 04:26:17 INFO SynthesisImagerVi2::defineImage Impars: start 2026-04-24 04:26:17 INFO SynthesisImagerVi2::defineImage Shape: [256, 256, 1, 1] Spectral: [9.99982e+08] at [0] with increment [1e+08] 2026-04-24 04:26:17 INFO SynthesisImagerVi2::defineImage Set Gridding options for [im_post_phaseshift] with ftmachine : gridft 2026-04-24 04:26:17 INFO SynthesisImagerVi2::nSubCubeFitInMemory Required memory: 0.003777 GB. Available mem.: 47.71 GB (rc, mem. fraction: 80%, memory: -) => Subcubes: 1. Processes on node: 1. 2026-04-24 04:26:17 INFO SynthesisImagerVi2::weight() Set imaging weights : Natural weighting 2026-04-24 04:26:17 INFO task_tclean::SynthesisDeconvolver::setupDeconvolution Set Deconvolution Options for [im_post_phaseshift] : hogbom 2026-04-24 04:26:17 INFO task_tclean::SynthesisImager::makePSF ----------------------------------------------------------- Make PSF --------------------------------------------- 2026-04-24 04:26:18 INFO task_tclean::SIImageStore::calcSensitivity [im_post_phaseshift] Theoretical sensitivity (Jy/bm):0.00889601 2026-04-24 04:26:18 INFO task_tclean::SIImageStore::getPSFGaussian Time to fit Gaussian to PSF 0.029288 2026-04-24 04:26:18 INFO task_tclean::SIImageStore::printBeamSet Beam : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:26:18 INFO task_tclean::SynthesisImagerVi2::makePrimaryBeam vi2 : Evaluating Primary Beam model onto image grid(s) 2026-04-24 04:26:18 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 1 ------------------------------------- 2026-04-24 04:26:19 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0, over full image : 5 2026-04-24 04:26:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Initializing new mask to 1.0 for the full image 2026-04-24 04:26:19 INFO SynthesisDeconvolver::setupMask [im_post_phaseshift] Number of pixels in the clean mask : 65536 out of a total of 65536 pixels. [ 100 % ] 2026-04-24 04:26:19 INFO SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 5, over full image : 5 2026-04-24 04:26:19 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 20, 'cyclethreshold': 0.6050434112548828, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:26:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.605043, CycleNiter=20, Gain=0.3 2026-04-24 04:26:19 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=0->4.41176, peakres=5->0.588245, Reached cyclethreshold. 2026-04-24 04:26:19 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 6 iterations. 2026-04-24 04:26:19 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 2 ------------------------------------- 2026-04-24 04:26:20 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.588239, over full image : 0.588239 2026-04-24 04:26:20 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 14, 'cyclethreshold': 0.07118194550275803, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:26:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.0711819, CycleNiter=14, Gain=0.3 2026-04-24 04:26:20 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.41176->4.93079, peakres=0.588239->0.0692057, Reached cyclethreshold. 2026-04-24 04:26:20 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 12 iterations. 2026-04-24 04:26:20 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 3 ------------------------------------- 2026-04-24 04:26:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.0692054, over full image : 0.0692054 2026-04-24 04:26:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 8, 'cyclethreshold': 0.008374442346394062, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:26:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.00837444, CycleNiter=8, Gain=0.3 2026-04-24 04:26:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->6 [6], model=4.93079->4.99185, peakres=0.0692054->0.00814194, Reached cyclethreshold. 2026-04-24 04:26:21 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 18 iterations. 2026-04-24 04:26:21 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 4 ------------------------------------- 2026-04-24 04:26:21 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00814203, over full image : 0.00814203 2026-04-24 04:26:21 INFO tclean::::casa Minor Cycle controls : {'cycleniter': 2, 'cyclethreshold': 0.0009852559305727482, 'loopgain': 0.30000001192092896, 'nsigma': 0.0, 'thresholdreached': False} 2026-04-24 04:26:21 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] Run Hogbom minor-cycle | CycleThreshold=0.000985256, CycleNiter=2, Gain=0.3 2026-04-24 04:26:22 INFO SDAlgorithmBase::deconvolve [im_post_phaseshift] iters=0->2 [2], model=4.99185->4.9972, peakres=0.00814203->0.00279272, Reached cycleniter. 2026-04-24 04:26:22 INFO grpcInteractiveCleanManager::mergeCycleExecutionRecord Completed 20 iterations. 2026-04-24 04:26:22 INFO task_tclean::SynthesisImager::executeMajorCycle ----------------------------------------------------------- Run Major Cycle 5 ------------------------------------- 2026-04-24 04:26:22 INFO task_tclean::SynthesisDeconvolver::initMinorCycle Absolute Peak residual within mask : 0.00279238, over full image : 0.00279238 2026-04-24 04:26:22 INFO tclean::::casa Reached global stopping criterion : iteration limit 2026-04-24 04:26:22 INFO tclean::::casa getSummary call: fullsummary=False 2026-04-24 04:26:22 INFO SDAlgorithmBase::restore [im_post_phaseshift] : Restoring model image. 2026-04-24 04:26:22 INFO SIImageStore::restore Beam for chan : 0 : 88.7245 arcsec, 77.571 arcsec, 89.1868 deg 2026-04-24 04:26:23 INFO tclean::::casa Searching for images with prefix 'im_post_phaseshift'... Found these, writing history into them: ['im_post_phaseshift.residual', 'im_post_phaseshift.mask', 'im_post_phaseshift.psf', 'im_post_phaseshift.model', 'im_post_phaseshift.pb', 'im_post_phaseshift.sumwt', 'im_post_phaseshift.image'] 2026-04-24 04:26:23 INFO tclean::::casa Task tclean complete. Start time: 2026-04-24 04:26:17.249750 End time: 2026-04-24 04:26:23.177691 2026-04-24 04:26:23 INFO tclean::::casa ##### End Task: tclean ##### 2026-04-24 04:26:23 INFO tclean::::casa ########################################## 2026-04-24 04:26:23 INFO ImageFitter::_finishConstruction No estimates file specified, so will attempt to find and fit one gaussian. 2026-04-24 04:26:23 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:26:23 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) 2026-04-24 04:26:23 INFO ImageFitter::fit noise FWHM not specified, so uncertainties will be computed using the beam geometric mean FWHM as the pixel noise correlation FWHM 2026-04-24 04:26:23 INFO ImageFitter::fit ****** Fit performed at Fri Apr 24 04:26:23 2026****** 2026-04-24 04:26:23 INFO ImageFitter::fit+ 2026-04-24 04:26:23 INFO ImageFitter::fit+ Input parameters --- 2026-04-24 04:26:23 INFO ImageFitter::fit+ --- imagename: /home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_phaseshift_casashell/im_post_phaseshift.image 2026-04-24 04:26:23 INFO ImageFitter::fit+ --- region: 2026-04-24 04:26:23 INFO ImageFitter::fit+ --- channel: 0 2026-04-24 04:26:23 INFO ImageFitter::fit+ --- stokes: I 2026-04-24 04:26:23 INFO ImageFitter::fit+ --- mask: 2026-04-24 04:26:23 INFO ImageFitter::fit+ --- include pixel range: [] 2026-04-24 04:26:23 INFO ImageFitter::fit+ --- exclude pixel range: [] 2026-04-24 04:26:23 INFO ImageFitter::_fitsky Fitter was able to find a solution in 7 iterations. 2026-04-24 04:26:23 INFO ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:26:23 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) 2026-04-24 04:26:23 INFO ImageMaskAttacher::makeMask Created mask `mask0' 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop *** Details of fit for channel number 0 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ Number of pixels used in fit: 441 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ Input and residual image statistics (to be used as a rough guide only as to goodness of fit) 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ --- Standard deviation of input image: 1.29486 Jy 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ --- Standard deviation of residual image: 0.000116869 Jy 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ --- RMS of input image: 1.85675 Jy 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ --- RMS of residual image: 0.000126485 Jy 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ Fit on im_post_phaseshift.image component 0 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ Position --- 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ --- ra: 19:53:49.999999 +/- 0.000089 s (0.001016 arcsec along great circle) 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ --- dec: +040.06.00.000008 +/- 0.000777 arcsec 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ --- ra: 127.999990 +/- 0.000127 pixels 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ --- dec: 127.999992 +/- 0.000097 pixels 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ Image component size (convolved with beam) --- 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 1.478829 +/- 0.000040 arcmin 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 1.292924 +/- 0.000030 arcmin 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ --- position angle: 89.1862 +/- 0.0071 deg 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ Clean beam size --- 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 88.72 arcsec 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 77.57 arcsec 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ --- position angle: 89.19 deg 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ Image component size (deconvolved from beam) --- 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ --- major axis FWHM: 967 +/- 249 marcsec 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ --- minor axis FWHM: 829 +/- 378 marcsec 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ --- position angle: 85 +/- 73 deg 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ Flux --- 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ --- Integrated: 5.00036 +/- 0.00022 Jy 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ --- Peak: 4.99978 +/- 0.00013 Jy/beam 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ --- Polarization: I 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ Spectrum --- 2026-04-24 04:26:23 INFO ImageFitter::_fitLoop+ --- frequency: 999.9816 MHz (29.97980 cm) 2026-04-24 04:26:23 INFO imstat::::casa ########################################## 2026-04-24 04:26:23 INFO imstat::::casa ##### Begin Task: imstat ##### 2026-04-24 04:26:23 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 ) 2026-04-24 04:26:23 INFO imstat::CasacRegionManager::fromBCS No directional region specified. Using full positional plane. 2026-04-24 04:26:23 INFO imstat::CasacRegionManager::fromBCS Using all spectral channels. 2026-04-24 04:26:23 INFO imstat::CasacRegionManager::fromBCS Using polarizations ALL 2026-04-24 04:26:23 INFO imstat::image::statistics Determining stats for image im_post_phaseshift.image 2026-04-24 04:26:23 INFO imstat::ImageRegion::fromRecord Selected bounding box : 2026-04-24 04:26:23 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) 2026-04-24 04:26:23 INFO imstat::ImageStatsCalculator::_logStartup Statistics calculated using Classic algorithm 2026-04-24 04:26:23 INFO imstat::ImageStatsCalculator::_logStartup Regions --- 2026-04-24 04:26:23 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (pixel) [blc]: [0, 0, 0, 0] 2026-04-24 04:26:23 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (pixel) [trc]: [255, 255, 0, 0] 2026-04-24 04:26:23 INFO imstat::ImageStatsCalculator::_logStartup -- bottom-left corner (world) [blcf]: 19:55:18.876, +39.48.53.864, I, 999981612.9Hz 2026-04-24 04:26:23 INFO imstat::ImageStatsCalculator::_logStartup -- top-right corner (world) [trcf]: 19:52:21.081, +40.22.53.888, I, 999981612.9Hz 2026-04-24 04:26:23 INFO imstat:::: Values --- 2026-04-24 04:26:23 INFO imstat:::: -- flux density [flux]: 4.99436 Jy 2026-04-24 04:26:23 INFO imstat:::: -- number of points [npts]: 65536 2026-04-24 04:26:23 INFO imstat:::: -- maximum value [max]: 5 Jy/beam 2026-04-24 04:26:23 INFO imstat:::: -- minimum value [min]: -7.77956e-05 Jy/beam 2026-04-24 04:26:23 INFO imstat:::: -- position of max value (pixel) [maxpos]: [128, 128, 0, 0] 2026-04-24 04:26:23 INFO imstat:::: -- position of min value (pixel) [minpos]: [77, 84, 0, 0] 2026-04-24 04:26:23 INFO imstat:::: -- position of max value (world) [maxposf]: 19:53:50.000, +40.06.00.000, I, 999981612.9Hz 2026-04-24 04:26:23 INFO imstat:::: -- position of min value (world) [minposf]: 19:54:25.508, +40.00.07.661, I, 999981612.9Hz 2026-04-24 04:26:23 INFO imstat:::: -- Sum of pixel values [sum]: 608.565 Jy/beam 2026-04-24 04:26:23 INFO imstat:::: -- Sum of squared pixel values [sumsq]: 1523.18 Jy/beam.Jy/beam 2026-04-24 04:26:23 INFO imstat:::: Statistics --- 2026-04-24 04:26:23 INFO imstat:::: -- Mean of the pixel values [mean]: 0.00928596 Jy/beam 2026-04-24 04:26:23 INFO imstat:::: -- Variance of the pixel values : 0.023156 Jy/beam 2026-04-24 04:26:23 INFO imstat:::: -- Standard deviation of the Mean [sigma]: 0.152171 Jy/beam 2026-04-24 04:26:23 INFO imstat:::: -- Root mean square [rms]: 0.152453 Jy/beam 2026-04-24 04:26:23 INFO imstat:::: -- Median of the pixel values [median]: -1.86648e-05 Jy/beam 2026-04-24 04:26:23 INFO imstat:::: -- Median of the deviations [medabsdevmed]: 1.73536e-05 Jy/beam 2026-04-24 04:26:23 INFO imstat:::: -- IQR [quartile]: 3.5639e-05 Jy/beam 2026-04-24 04:26:23 INFO imstat:::: -- First quartile [q1]: -3.45152e-05 Jy/beam 2026-04-24 04:26:23 INFO imstat:::: -- Third quartile [q3]: 1.12373e-06 Jy/beam 2026-04-24 04:26:23 INFO imstat::ImageStatsCalculator::statistics Sum column unit = Jy/beam 2026-04-24 04:26:23 INFO imstat::ImageStatsCalculator::statistics+ Mean column unit = Jy/beam 2026-04-24 04:26:23 INFO imstat::ImageStatsCalculator::statistics+ Std_dev column unit = Jy/beam 2026-04-24 04:26:23 INFO imstat::ImageStatsCalculator::statistics+ Minimum column unit = Jy/beam 2026-04-24 04:26:23 INFO imstat::ImageStatsCalculator::statistics+ Maximum column unit = Jy/beam 2026-04-24 04:26:23 INFO imstat::ImageStatsCalculator::statistics Npts Sum Mean Rms Std_dev Minimum Maximum 2026-04-24 04:26:23 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 2026-04-24 04:26:23 INFO imstat::::casa Task imstat complete. Start time: 2026-04-24 04:26:23.250188 End time: 2026-04-24 04:26:23.276941 2026-04-24 04:26:23 INFO imstat::::casa ##### End Task: imstat ##### 2026-04-24 04:26:23 INFO imstat::::casa ########################################## . ---------------------------------------------------------------------- Ran 27 tests in 1422.640s OK Generating XML reports...